67% (1996)

57% (1987)

45% (1973)

62% (1992)

58% (1993)

66% (1976)

69% (2017)

64% (2001)

62% (1992)

47% (1998)

73% (1995)

49% (1994)

61% (1974)

62% (1972)

58% (2017)

49% (1972)

68% (2002)

44% (2015)

56% (1972)

62% (2017)