45% (2005)

55% (1999)

64% (1975)

62% (1967)

59% (1980)

58% (1969)

32% (1976)

57% (1968)

53% (1967)

54% (1982)

43% (1977)

53% (1977)

70% (1968)

40% (1970)

80% (1981)

25% (1976)

60% (1971)

20% (1976)

40% (1983)

70% (1972)