40% (1990)

63% (1990)

50% (2002)

67% (2002)

59% (1984)

0% (1973)

72% (1999)

0% (1979)

60% (1979)

0% (1982)

40% (2004)

80% (1987)

71% (2002)

0% (1974)

49% (1988)

0% (2006)

90% (1993)

52% (1985)

59% (1999)

0% (1978)