79% (1955)

72% (1974)

57% (1973)

72% (1975)

75% (1976)

50% (1991)

56% (1960)

81% (1972)

27% (2007)

75% (1978)

55% (1961)

50% (1954)

46% (2012)

67% (1950)

50% (1949)

53% (1949)

55% (1960)

50% (1955)

56% (1948)

53% (1958)