72% (2005)

55% (1985)

56% (1992)

65% (1982)

64% (1982)

69% (1988)

66% (1995)

54% (1972)

60% (1982)

70% (1995)

61% (1983)

49% (1995)

64% (1987)

62% (1980)

65% (1992)

35% (1985)

52% (1993)

0% (1984)

43% (1982)

58% (1980)