60% (1987)

62% (1984)

62% (1981)

0% (1949)

59% (1982)

50% (1979)

50% (1995)

50% (2000)

0% (1954)

70% (1989)

0% (1947)

40% (1967)

0% (1955)

37% (1984)

0% (1954)

10% (1960)

0% (1949)

0% (1967)

40% (1948)

45% (1997)