70% (2009)

55% (1997)

56% (2016)

57% (2013)

55% (2000)

49% (1962)

62% (2017)

68% (1981)

57% (2010)

62% (2017)

40% (2017)

70% (1952)

54% (1996)

63% (1985)

61% (2006)

57% (2017)

66% (1982)

60% (1982)

62% (2000)

57% (1936)