54% (1984)

36% (1987)

39% (1984)

27% (2013)

34% (2012)

46% (1973)

38% (1985)

38% (2012)

50% (1985)

49% (1983)

50% (1984)

0% (2007)

47% (2013)

27% (1986)

55% (2006)

20% (1973)

37% (1976)

0% (2008)