54% (1960)

76% (1997)

27% (2001)

82% (1989)

60% (1962)

78% (1961)

68% (1984)

46% (2004)

56% (1978)

64% (1955)

81% (2010)

66% (1972)

76% (2015)

37% (1959)

64% (2009)

37% (2007)

74% (1962)

74% (2014)

40% (1955)

51% (2011)