32% (1983)

62% (1988)

67% (1975)

38% (1999)

65% (2001)

0% (1994)

45% (2005)

0% (1975)

0% (1976)

0% (1976)

49% (1995)

60% (2000)

66% (1990)

80% (1972)

50% (1993)

47% (1999)

61% (2000)

0% (1980)

100% (1987)

32% (1982)