64% (1995)

59% (2001)

64% (1984)

47% (1997)

55% (2002)

73% (1987)

66% (2001)

64% (1993)

65% (1986)

57% (1997)

58% (2001)

50% (1997)

65% (1985)

60% (1996)

49% (1999)

0% (1990)

100% (2000)

59% (2002)

67% (1981)

64% (1983)