77% (1988)

70% (1995)

67% (1985)

10% (1991)

57% (1989)

65% (1983)

63% (1994)

73% (1983)

68% (1989)

76% (1995)

80% (1991)

67% (1992)

69% (1983)

73% (1986)

65% (1991)

63% (1985)

69% (1993)

56% (1986)

0% (1985)

64% (1995)