63% (2010)

63% (2005)

65% (2009)

60% (2006)

67% (2011)

73% (2010)

75% (2008)

65% (2008)

48% (2004)

75% (2010)

64% (2006)

60% (2003)

73% (2010)

56% (2006)

58% (2007)

56% (2006)

58% (2010)

59% (2011)

57% (2005)

55% (2004)