70% (2013)

70% (1957)

57% (2018)

67% (1970)

71% (1988)

54% (1992)

61% (2006)

51% (2001)

61% (1982)

62% (1995)

66% (1989)

76% (1976)

63% (2010)

76% (1954)

65% (2004)

72% (1992)

69% (1970)

68% (1974)

61% (1989)

55% (1991)