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28 June 1999–10 December 2000
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11 December 2000–22 January 2002
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(hiatus from 22 January 2002 to 29 March 2006)
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30 March 2006–4 January 2009
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5 January 2009–16 November 2016
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17 November 2016–8 January 2017
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9 January 2017–29 August 2018
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30 August 2018–present
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