64% (2010)

73% (2003)

50% (2007)

67% (2007)

63% (2000)

59% (2004)

66% (2002)

61% (2009)

61% (2007)

42% (2009)

45% (2009)

55% (2007)

57% (2005)

69% (2002)

58% (2008)

81% (2006)

82% (1999)

57% (2008)

69% (2003)

60% (2004)