56% (1980)

68% (1992)

67% (1992)

67% (2000)

79% (1985)

0% (1987)

65% (1988)

59% (2012)

70% (2019)

60% (1976)

62% (1983)

64% (1974)

64% (1995)

78% (1976)

61% (2008)

80% (1973)

79% (1976)

67% (2000)

60% (1967)

70% (1999)