63% (1990)

60% (1988)

60% (1984)

59% (1999)

52% (1988)

52% (1985)

40% (1990)

50% (1993)

70% (1997)

50% (2002)

72% (1999)

70% (1987)

70% (1987)

70% (1999)

71% (2002)

0% (1968)

60% (1979)

67% (2002)

0% (1980)

0% (1979)