40% (2002)

22% (2003)

32% (2004)

25% (2003)

10% (1997)

43% (2008)

26% (2006)

10% (1999)

28% (2003)

50% (2018)

46% (2009)

22% (2005)

31% (2006)

10% (2003)

24% (2003)

10% (2002)

43% (2001)

10% (2002)

30% (2008)

23% (2005)