82% (2009)

74% (2005)

40% (2004)

66% (2007)

82% (2012)

68% (2003)

81% (2011)

72% (2010)

64% (2013)

53% (2009)

75% (2011)

68% (2009)

67% (2010)

70% (2008)

72% (2011)

80% (2013)

71% (2008)

61% (2012)

27% (2004)

67% (2017)