68% (2012)

67% (2013)

30% (2010)

72% (2015)

57% (2011)

0% (2011)

55% (2008)

71% (2015)

60% (2007)

30% (2002)

78% (2015)

80% (2015)

79% (2006)

0% (2010)

67% (2005)

70% (2011)

75% (2005)

65% (2014)

0% (2006)

70% (2013)