58% (2014)

51% (1982)

50% (2018)

45% (2000)

59% (1969)

61% (1988)

58% (2009)

43% (1996)

70% (1982)

54% (2004)

70% (1980)

69% (2016)

75% (2010)

68% (1989)

58% (1972)

52% (1977)

62% (2000)

63% (1973)

52% (1975)

66% (1983)