77% (2008)

79% (2003)

67% (2013)

70% (2010)

72% (2005)

76% (1988)

75% (2006)

76% (2017)

75% (2015)

0% (1999)

65% (2011)

83% (2010)

74% (2005)

70% (2006)

72% (2015)

69% (2004)

68% (2012)

72% (2018)

80% (2013)

64% (2014)