79% (1981)

71% (2007)

72% (1969)

53% (1993)

83% (1995)

58% (2001)

86% (2016)

37% (1975)

73% (2008)

76% (1990)

68% (2006)

65% (2004)

46% (1979)

72% (1972)

74% (2018)

56% (1985)

100% (1968)

54% (1972)

75% (1992)

69% (1956)