67% (2015)

79% (2013)

69% (2015)

70% (1997)

79% (2016)

73% (2014)

70% (2011)

77% (2007)

57% (2004)

64% (2004)

69% (2007)

59% (2016)

63% (2012)

71% (2010)

70% (2005)

20% (2003)

67% (2009)

86% (2005)

40% (2002)

10% (2007)