58% (1993)

61% (1994)

57% (1989)

70% (1988)

61% (1991)

63% (1994)

40% (1994)

62% (1923)

57% (1983)

60% (1991)

76% (1985)

66% (1985)

54% (1992)

60% (1992)

58% (1992)

65% (1929)

64% (1995)

45% (1984)

57% (1950)

60% (1994)