50% (1981)

68% (1983)

67% (2000)

70% (1963)

55% (1987)

63% (1974)

50% (1969)

80% (1957)

50% (1955)

61% (2013)

70% (1993)

70% (1957)

61% (2015)

35% (1974)

63% (2014)

0% (1950)

57% (1955)

100% (1974)

60% (1957)

55% (1960)