85% (1994)

77% (1987)

71% (1993)

47% (1984)

65% (1992)

52% (2003)

63% (1991)

71% (2003)

68% (1994)

56% (1991)

40% (1980)

62% (1986)

61% (1990)

57% (1980)

76% (1993)

62% (1993)

47% (1994)

60% (1995)

68% (1988)

70% (1986)