56% (2004)

51% (2008)

75% (2005)

54% (2002)

70% (2004)

56% (2005)

53% (2009)

48% (2003)

76% (2002)

43% (2007)

41% (2009)

42% (2004)

64% (2002)

44% (2002)

33% (2001)

55% (2009)

64% (2009)

50% (2005)

38% (2001)

48% (2010)