61% (2013)

56% (2011)

50% (1983)

83% (1976)

62% (1984)

72% (2007)

75% (1973)

54% (2013)

50% (1958)

60% (1990)

77% (2001)

74% (1961)

48% (2011)

50% (1980)

53% (2000)

30% (2000)

90% (1961)

66% (2014)

40% (1969)

55% (1970)