70% (1983)

65% (1973)

71% (1969)

50% (2001)

71% (1965)

62% (1989)

57% (1994)

80% (1983)

44% (1987)

30% (1973)

71% (1962)

67% (1969)

44% (1981)

64% (1962)

41% (1986)

49% (1982)

50% (1975)

61% (1961)

0% (1959)

50% (1993)