75% (2015)

83% (2012)

44% (1997)

73% (2006)

70% (1983)

56% (1962)

54% (1972)

100% (1968)

38% (1965)

75% (1947)

70% (2005)

78% (1978)

50% (2011)

64% (2008)

70% (1996)

0% (1994)

75% (1970)

55% (1994)

50% (2006)

62% (2005)