100% (2000)

60% (1977)

60% (1960)

57% (1969)

0% (1993)

67% (1983)

0% (1977)

50% (1991)

50% (1961)

50% (1973)

63% (1978)

68% (1986)

50% (1983)

60% (1993)

60% (1980)

56% (1993)

74% (2001)

60% (1966)

73% (1975)

30% (1974)