33% (2004)

10% (1999)

10% (2002)

37% (2003)

10% (2006)

0% (2000)

35% (2005)

32% (1997)

25% (2000)

28% (2000)

43% (2002)

10% (2002)

29% (2002)

28% (2000)

34% (2002)

10% (2002)

10% (2003)

0% (2005)

50% (1996)