61% (2013)

60% (1960)

50% (1955)

75% (2008)

76% (2000)

50% (1975)

67% (2002)

50% (1964)

67% (2013)

70% (1974)

53% (1960)

66% (1979)

50% (1981)

69% (1998)

57% (1980)

56% (1982)

50% (1964)

68% (2014)

66% (2017)

66% (2014)