67% (1978)

66% (1964)

71% (1973)

48% (2000)

62% (1980)

76% (1997)

79% (1963)

71% (1983)

62% (1953)

48% (2001)

61% (1955)

79% (1978)

0% (1973)

61% (1986)

70% (1962)

75% (2011)

77% (1978)

75% (1956)

45% (1964)

71% (1990)