59% (2003)

32% (2000)

52% (2005)

47% (2001)

45% (2012)

35% (2000)

30% (2005)

46% (2002)

21% (1997)

24% (2001)

50% (1996)

10% (1999)

20% (2002)

27% (1994)

29% (2003)