53% (1993)

82% (1999)

66% (1971)

77% (1997)

78% (2001)

0% (1963)

65% (1987)

50% (2002)

29% (2001)

39% (1985)

50% (1982)

0% (1999)

20% (1997)

60% (1987)

52% (1992)

100% (1995)

0% (1969)

64% (1975)

0% (1999)

63% (2000)