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1 May 1953–13 September 1970 (as a TV production company from 1 May 1953 to 30 October 1959 / as a TV channel since 31 October 1959)
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14 September 1970–22 August 1976
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23 August 1976–11 September 1977
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12 September 1977–27 August 1978
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29 August 1978–23 October 1979
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24 October–7 November 1979
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8 November 1979–6 January 1980
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7 January–14 March 1980
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15 March–6 May 1980
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7 May–30 October 1980
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31 October 1980–5 August 1981
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12 August–11 October 1981
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12 October–31 December 1981
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1 January–31 October 1982
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1 November 1982–25 January 1983
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26 January–9 February 1983
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10 February–20 November 1983
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21 November 1983–12 June 1984
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13 June–5 August 1984
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6 August–30 September 1984
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1 October 1984–14 May 1985
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15 May–26 June 1985
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27 June–30 August 1985
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31 August–1 September 1985
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2 September 1985–1 May 1986
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5 June–24 August 1986
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25 August 1986–1 February 1987
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2 February–24 April 1987
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25 April–20 May 1987
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21 May–26 June 1987
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27 June–6 September 1987
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7–13 September 1987
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14 September 1987–3 January 1988
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4 January–27 April 1988
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28 April–1 July 1988
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8 August–2 October 1988
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3 October–31 December 1988
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17 January–6 March 1989
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7 March–2 April 1989
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3 April–21 May 1989
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29 May–30 July 1989
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31 July–31 August 1989
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4–29 September 1989
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1 October 1989–18 February 1990
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19 February–11 March 1990
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12 March–29 April 1990
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30 April–18 June 1990
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19 June–29 July 1990
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30 July–7 August 1990
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8 August–2 September 1990
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3–25 September 1990
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26 September–18 October 1990
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19 October 1990–9 February 1991
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10 February–3 October 1991
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4 October–3 November 1991
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4 November 1991–19 March 1992
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20 March–30 August 1992
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31 August–31 December 1992
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6 January–7 February 1993
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22 February–3 March 1993
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10 March–13 May 1993
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4 June–30 September 1993
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1 October 1993–4 January 1994
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5 January–27 February 1994
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24 March–4 July 1994
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5 July–31 August 1994
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6–11 September 1994
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12–22 September 1994
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23–30 September 1994
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18 October 1994–1 January 1995
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2 January–19 February 1995
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20 February–7 May 1995
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5 July–6 August 1995
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14 August–3 September 1995
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4–17 September 1995
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18 September 1995–9 May 1996
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10 July–25 August 1996
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26 August–1 September 1996
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2–20 September 1996
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21 September–6 October 1996
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7 October–24 November 1996
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25 November–31 December 1996
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22 January–12 March 1997
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13 March–29 June 1997
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30 June–10 July 1997
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14 July–26 August 1997
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27 August–12 September 1997
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13 September 1997–11 January 1998
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31 January–16 February 1998
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17 February–7 March 1998
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8 March–7 April 1998
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20 April–31 May 1998
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1 June–30 August 1998
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31 August–3 October 1998
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4 October–14 November 1998
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15–28 November 1998
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29 November–6 December 1998
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7 December 1998–4 March 1999
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8 March–22 April 1999
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23 April–8 June 1999
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1 July–5 September 1999
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6 September–3 October 1999
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4 October–7 November 1999
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8 November 1999–5 January 2000
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6 January–28 February 2000
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29 February–19 March 2000
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20 March–30 June 2000
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1 July–2 September 2000
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3 September–10 December 2000
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11–31 December 2000
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6 January–4 March 2001
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5 March–10 June 2001
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14 June–10 August 2001
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11 August–2 September 2001
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3–30 September 2001
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16 October–18 November 2001
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19 November 2001–20 January 2002
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21 January–24 February 2002
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25 February–2 March 2002
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19 March–1 April 2002
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8 April–19 May 2002
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31 May–30 June 2002
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12 July–1 September 2002
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10–30 September 2002
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28 October–11 December 2002
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12–23 December 2002
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24 December 2002–5 January 2003
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7 January–28 February 2003
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1 March–25 April 2003
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26 April–22 May 2003
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27 June–13 July 2003
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14 July–5 August 2003
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1 September–19 November 2003
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20–30 November 2003
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1 December 2003–31 January 2004
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17 March–18 May 2004
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1 June–14 July 2004
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15 July–31 August 2004
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6–30 September 2004
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20–23 December 2004
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24–31 December 2004
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29 March–31 May 2005
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1 July–31 August 2005
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5–19 September 2005
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20 September–23 October 2005
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14–30 November 2005
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24 December 2005–3 January 2006
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16 January–12 February 2006
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13–26 February 2006
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27 February–17 March 2006
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20 March–13 April 2006
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14 April–29 May 2006
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30 May–18 June 2006
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19 June–20 July 2006
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21 July–12 November 2006
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13 November–3 December 2006
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4 December 2006–14 February 2007
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15–28 February 2007
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1 March–24 June 2007
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26 June–8 July 2007
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9 July–2 September 2007
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6–11 September 2007
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12–23 September 2007
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24 September–21 October 2007
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22 October–3 December 2007
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4 December 2007–31 May 2008
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6 June–19 August 2008
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20 August–6 September 2008
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7 September–11 October 2008
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15 October–12 December 2008
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13–31 December 2008
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5 January–15 February 2009
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16 February–29 March 2009
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30 March–5 April 2009
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27 April–19 June 2009
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20 June–4 October 2009
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5 October–1 November 2009
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2 November 2009–8 April 2010
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9 April–17 June 2010
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18 June–26 September 2010
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27 September–7 November 2010
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8 November 2010–1 January 2011
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10 January–4 February 2011
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5 February–5 May 2011
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14 July–11 September 2011
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12–19 September 2011
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20 September–23 October 2011
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24 October 2011–4 May 2012
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5 May–30 September 2012
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12 October–31 December 2012
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14 January 2013–5 January 2014
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6 January–16 February 2014
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17 February–29 June 2014
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30 June–7 October 2014
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13 October–31 December 2014
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7 January–11 August 2015
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12 August–13 September 2015
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14 September–2 October 2015
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3 October–11 November 2015
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12 November 2015–16 October 2016
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17 October–16 November 2016
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17 November 2016–8 January 2017
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20–24 February 2017
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25 February–16 April 2017
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17 April–19 September 2017
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20 September 2017–29 June 2018
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30 June–26 August 2018
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30 August–7 October 2018
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8 October–31 December 2018
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1 January 2019–1 April 2020
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2 April–12 September 2020
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13–20 September 2020
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21 September 2020–23 April 2021
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24 April–16 September 2021
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17 September 2021–present
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