33% (2000)

63% (2003)

51% (2003)

54% (2006)

41% (2004)

46% (2006)

53% (2006)

44% (2002)

47% (2005)

38% (2001)

44% (2004)

34% (1999)

43% (2005)

61% (2010)

71% (2006)

49% (2004)

77% (2007)

33% (2004)

70% (2007)

0% (2005)