53% (1997)

35% (1996)

46% (1996)

43% (1995)

39% (1997)

55% (1994)

46% (1997)

45% (1995)

47% (1996)

33% (1996)

39% (2005)

38% (1999)

39% (2008)

33% (1999)

0% (1998)

55% (1995)