56% (2012)

55% (2013)

49% (2009)

56% (2010)

48% (2011)

58% (2012)

62% (2010)

78% (2012)

59% (2010)

56% (2011)

51% (2010)

58% (2010)

82% (2009)

64% (2010)

45% (2010)