65% (1984)

70% (1967)

55% (1957)

75% (2008)

60% (1970)

50% (1991)

55% (1977)

50% (1962)

25% (1962)

0% (1995)

63% (1979)

60% (1961)

70% (1975)

50% (1968)

50% (1963)

63% (1966)

50% (1955)

50% (1950)

60% (1964)

50% (1993)