65% (2006)

72% (2005)

70% (2009)

67% (2003)

56% (2013)

55% (2004)

59% (2003)

54% (2003)

60% (2004)

55% (2011)

58% (2004)

62% (2006)

66% (2006)

56% (2007)

61% (2006)

39% (2012)

56% (2002)

49% (2003)