78% (2009)

70% (2019)

65% (2012)

72% (2001)

48% (2008)

59% (2010)

66% (2015)

72% (2015)

68% (2012)

68% (2005)

69% (2006)

65% (2011)

69% (2009)

73% (2016)

68% (2010)

65% (2010)

70% (2006)

64% (2015)

39% (2003)

74% (2014)