51% (2005)

49% (2005)

62% (1982)

64% (1982)

60% (1969)

65% (1966)

58% (1982)

43% (1980)

56% (1978)

53% (1995)

60% (1991)

58% (1982)

62% (1994)

60% (1981)

60% (1979)

0% (1980)

0% (1985)

60% (1991)

0% (1978)

50% (1979)