48% (1993)

56% (1978)

79% (1994)

74% (1991)

58% (1993)

72% (1992)

57% (1992)

58% (1992)

60% (1990)

59% (1992)

76% (1991)

57% (1991)

46% (1991)

58% (1990)

67% (1992)

72% (1993)

61% (1993)

58% (1990)

60% (1990)

50% (1980)