70% (1984)

0% (1996)

60% (2008)

80% (1996)

0% (1960)

70% (1980)

52% (1987)

40% (1991)

52% (1992)

0% (1979)

30% (1952)

0% (1980)

0% (1977)

0% (1954)

0% (1983)

0% (1994)

50% (1990)

0% (1985)

57% (1994)

10% (1981)