72% (1988)

60% (1987)

63% (1988)

60% (1996)

60% (1991)

75% (1987)

40% (2002)

57% (1987)

60% (1987)

56% (1987)

55% (1988)

75% (1995)

40% (1986)

58% (1988)

54% (1986)

80% (1986)

50% (1985)

77% (1998)

75% (1982)

63% (1983)