55% (1983)

69% (1988)

15% (1989)

0% (1971)

58% (1979)

0% (2006)

35% (2001)

65% (1983)

66% (1976)

10% (1991)

60% (1980)

0% (1979)

38% (1973)

40% (2004)

72% (1978)

70% (1973)

61% (1980)

0% (1972)

0% (1975)

80% (1980)