63% (1980)

58% (1995)

49% (1992)

67% (1991)

85% (1988)

56% (1992)

41% (1994)

54% (1974)

73% (1984)

58% (1978)

55% (1975)

62% (1981)

45% (1976)

60% (1979)

81% (1965)

52% (1998)

64% (1972)

75% (1977)

69% (1976)

62% (2022)