55% (1984)

72% (1971)

71% (1971)

32% (1995)

48% (1980)

66% (1979)

53% (1983)

0% (1995)

20% (1983)

70% (1981)

60% (1974)

44% (1997)

72% (1984)

38% (1980)

49% (2007)

10% (1979)

52% (1974)

45% (1998)

48% (1975)

34% (1984)