43% (1992)

50% (2012)

50% (1987)

83% (1985)

73% (1974)

0% (1972)

75% (1949)

50% (1981)

50% (1985)

45% (1968)

70% (1954)

60% (1969)

55% (1989)

58% (2003)

82% (1984)

50% (1974)

60% (1978)

73% (1999)

66% (1984)

50% (1965)