54% (1994)

67% (1991)

58% (1992)

55% (1992)

40% (1994)

62% (1994)

45% (1984)

51% (1988)

70% (1988)

66% (1985)

59% (1989)

55% (1989)

58% (1988)

62% (1994)

65% (1929)

64% (1995)

61% (1991)

58% (1991)

76% (1985)

57% (1983)