73% (2005)

49% (1995)

66% (1995)

56% (1985)

35% (1985)

65% (1982)

64% (1982)

40% (1981)

68% (1988)

61% (1983)

61% (1982)

0% (1984)

65% (1990)

35% (1981)

60% (1994)

70% (1995)

52% (1993)

54% (1972)

65% (1992)

64% (1987)