52% (2006)

35% (2004)

44% (2004)

46% (2008)

60% (2010)

59% (2009)

53% (2004)

54% (2007)

36% (2011)

41% (2010)

60% (2004)

38% (2007)

51% (2010)

49% (2004)

20% (2002)