70% (2008)

59% (1984)

65% (1986)

41% (1960)

60% (1974)

50% (1994)

72% (1986)

60% (1996)

67% (1994)

50% (1973)

65% (1985)

0% (1972)

100% (1994)

0% (1971)

0% (1991)

55% (1987)

60% (1990)

0% (1994)

72% (1970)

70% (2001)