72% (1991)

66% (1993)

69% (2010)

56% (1998)

66% (1998)

72% (1985)

77% (2008)

82% (1990)

77% (2015)

74% (1976)

50% (1965)

74% (2001)

58% (1992)

0% (1993)

83% (2007)

70% (1985)

70% (1987)

50% (1981)

90% (1996)

56% (2019)