49% (2005)

51% (2005)

62% (1982)

56% (1978)

64% (1982)

58% (1982)

58% (1982)

60% (1981)

0% (1980)

0% (1978)

43% (1980)

50% (1979)

30% (1974)

60% (1985)

65% (1966)

62% (1994)

80% (1996)

60% (1969)

58% (1995)

60% (1979)