66% (1995)

80% (1966)

71% (1997)

69% (1954)

63% (1987)

60% (1979)

76% (1958)

61% (1994)

67% (1971)

47% (1995)

66% (1976)

52% (1996)

68% (1965)

61% (1969)

67% (1978)

66% (1980)

70% (1978)

63% (1972)

61% (1979)

60% (1978)