70% (1983)

65% (1973)

71% (1969)

63% (1989)

68% (1969)

49% (2001)

47% (1981)

71% (1965)

60% (1953)

80% (1983)

64% (1962)

30% (1973)

71% (1962)

44% (1987)

61% (1961)

59% (1971)

57% (1994)

58% (1971)

54% (1983)

50% (1975)