From Wikipedia, the free encyclopedia
8 June 1988–4 February 1989 (pre-launch)
[edit]5 February 1989–1 November 1990
[edit]2 November 1990–31 August 1993
[edit]1 September 1993–31 August 1995
[edit]1 September 1995–30 August 1996
[edit]31 August 1996–September 1997
[edit]September 1997–30 September 1998
[edit]1 October 1998–2000
[edit]2000–30 September 2001
[edit]1 October 2001–18 April 2004
[edit]19 April 2004–23 October 2005
[edit]24 October 2005–30 October 2007
[edit]31 October 2007–2 April 2008
[edit]3 April 2008–3 February 2009
[edit]4 February 2009–21 April 2010
[edit]22 April 2010–25 June 2012
[edit]26 June 2012–11 August 2013
[edit]12 August 2013–6 May 2015
[edit]7 May 2015–15 January 2018
[edit]16 January 2018–2021
[edit] 
