1963 to 1981:8th October 2012
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1982 to 1992:8th October 2012
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1993 to 1997:8th October 2012
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1996 to 2000:8th October 2012
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2000 to 2004:26th June 2012
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2004 to 2012:26th June 2012
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2012 onwards:26th June 2012
...