65% (1995)

64% (1984)

73% (1987)

55% (2002)

56% (1999)

63% (1993)

60% (1997)

60% (2001)

65% (1984)

67% (1981)

58% (1996)

67% (2001)

50% (2001)

47% (1997)

64% (1983)

61% (2002)

56% (1991)

65% (1992)

65% (1985)

70% (1983)