67% (1996)

59% (2000)

66% (2016)

62% (2012)

59% (2010)

57% (2007)

63% (1998)

64% (2017)

47% (1995)

56% (2004)

50% (2010)

59% (2005)

63% (2003)

58% (2006)

56% (2005)

60% (2001)

56% (2000)

57% (1991)

57% (2001)

54% (1997)