57% (1990)

69% (1946)

47% (1960)

40% (1979)

45% (1976)

0% (1959)

64% (1990)

71% (1975)

58% (1967)

64% (1980)

64% (1964)

58% (1968)

45% (1984)

50% (1966)

59% (1950)

57% (1989)

65% (1989)

10% (1990)

58% (1971)

60% (1973)