35% (2010)

15% (2004)

59% (2003)

50% (2007)

0% (2007)

25% (2001)

17% (2004)

40% (2003)

0% (2006)

26% (2006)

60% (2004)

18% (2010)

0% (2006)

33% (2012)

23% (2007)

17% (1999)

25% (2008)

36% (2009)

38% (2000)

40% (2000)