FANDOM


5 May 1930-2 March 1935

3 March 1935-8 May 1940

9 May 1940-22 May 1950

23 May 1950-28 February 1970

1 March 1970-7 May 1989

8 May 1989-20 August 2006

21 August 2006-3 April 2009

4 April 2009-31 May 2012

1 June 2012-1 March 2013

2 March 2013-30 June 2015

1 July 2015-present

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