68% (1998)

75% (2010)

70% (1988)

44% (1980)

57% (1978)

45% (2004)

95% (1993)

52% (1996)

65% (1979)

62% (1988)

62% (2002)

76% (2019)

61% (1981)

30% (1992)

50% (1994)

63% (1976)

70% (1972)

64% (2010)

56% (1973)

57% (1996)