45% (1972)

39% (2001)

76% (1979)

61% (1985)

76% (2013)

57% (1981)

79% (2006)

72% (1989)

77% (2002)

50% (1983)

69% (1994)

83% (2013)

68% (2009)

76% (2008)

56% (2001)

50% (1998)

71% (2010)

70% (2023)

83% (2015)

91% (2011)