46% (2005)

34% (2006)

56% (2005)

40% (2003)

49% (2006)

50% (2010)

55% (2001)

45% (2001)

41% (2000)

48% (2003)

57% (1995)

30% (1998)

52% (2007)

37% (2010)

36% (2011)

38% (1996)

42% (2008)

44% (1996)

0% (2005)

43% (1999)