79% (1983)

70% (1980)

48% (2000)

67% (1984)

63% (1981)

79% (1981)

55% (1981)

69% (1982)

62% (1980)

71% (1981)

45% (2007)

42% (1984)

61% (1982)

69% (1979)

62% (1981)

50% (1985)

57% (1983)

0% (1982)