67% (1991)

55% (1992)

57% (1988)

40% (1994)

64% (1995)

62% (1923)

58% (1988)

66% (1985)

54% (1994)

60% (1992)

70% (1988)

62% (1994)

45% (1984)

58% (1991)

61% (1991)

55% (1989)

59% (1989)

59% (1995)

65% (1929)

76% (1985)