68% (1956)

50% (1988)

62% (1987)

72% (1977)

70% (1964)

0% (1987)

58% (1990)

40% (1978)

50% (1977)

67% (1988)

57% (1958)

70% (1989)

0% (1968)

60% (1991)

80% (1966)

0% (1943)

60% (1991)

70% (1976)

40% (1926)

70% (1976)