49% (2010)

56% (2006)

59% (2005)

44% (2004)

62% (2006)

51% (2004)

39% (2002)

67% (2009)

46% (2008)

41% (2007)

35% (2004)

39% (2008)

49% (2005)

46% (2005)

41% (2008)

38% (2004)

54% (2008)

43% (2007)

51% (2006)

51% (2006)