46% (1986)

34% (2000)

83% (1973)

54% (1977)

10% (1982)

45% (1969)

60% (1995)

55% (1975)

68% (2004)

43% (1977)

50% (1973)

52% (2001)

40% (1996)

65% (1971)

44% (2001)

50% (1972)

30% (1990)

0% (1976)

70% (1997)

0% (1982)