64% (1995)

55% (1987)

61% (1995)

61% (1992)

67% (1994)

68% (1994)

60% (1958)

64% (1995)

64% (1987)

57% (1993)

67% (1991)

67% (1990)

47% (1994)

62% (1994)

52% (1988)

64% (1993)

61% (1994)

58% (1990)

70% (1994)

57% (1988)