67% (1979)

70% (2004)

52% (1987)

43% (2001)

56% (1991)

56% (2013)

68% (2013)

63% (1981)

75% (2007)

66% (1974)

58% (1992)

59% (1990)

63% (1998)

57% (2006)

69% (2006)

77% (1990)

76% (1958)

0% (2025)

71% (1977)

69% (2016)