74% (2008)

70% (1984)

70% (1968)

57% (2005)

69% (1983)

70% (1985)

46% (2005)

62% (2001)

59% (2009)

71% (1969)

76% (1982)

57% (1985)

60% (2005)

66% (2007)

77% (2005)

57% (2017)

64% (2003)

68% (2018)

57% (1960)

68% (1999)