79% (1994)

75% (1991)

75% (1994)

77% (1993)

76% (1987)

76% (1988)

63% (2017)

75% (1979)

70% (1969)

75% (1989)

61% (1991)

78% (1988)

70% (1989)

80% (1989)

70% (1985)

73% (1989)

50% (1995)

80% (1989)

58% (1975)

76% (1989)