73% (2005)

45% (1988)

50% (1986)

74% (1992)

50% (1984)

55% (2018)

68% (2003)

66% (1993)

60% (2014)

40% (1975)

62% (1968)

65% (1977)

64% (2000)

66% (1986)

60% (1991)

37% (1996)

68% (1975)

37% (1994)

56% (1994)

57% (1994)