55% (1992)

58% (1963)

0% (1976)

57% (1987)

50% (1967)

50% (1985)

43% (1996)

57% (1966)

0% (1980)

50% (1966)

53% (1987)

20% (2000)

57% (1967)

57% (1977)

10% (1971)

63% (1981)

57% (1953)

0% (1982)

0% (1955)

64% (1988)