55% (1961)

50% (1955)

53% (1958)

53% (1955)

56% (1948)

50% (1956)

50% (1957)

27% (2007)

50% (1961)

50% (1960)

60% (1953)

50% (1991)

55% (1960)

55% (1957)

56% (1970)

60% (1958)