60% (1986)

69% (1984)

60% (2005)

62% (1970)

0% (1998)

0% (1980)

30% (1999)

78% (2007)

74% (2004)

70% (1992)

64% (1971)

53% (2012)

68% (1952)

76% (2015)

90% (1948)

60% (2005)

38% (2015)

60% (1989)

54% (2015)

0% (2007)