51% (2002)

53% (2008)

50% (2007)

58% (2010)

54% (1997)

58% (2007)

80% (1996)

55% (2000)

42% (2002)

50% (2007)

20% (1994)

56% (1993)

25% (2004)

25% (2008)

50% (1995)