78% (2010)

72% (2009)

63% (2021)

55% (2018)

77% (2004)

71% (2003)

71% (1998)

67% (2017)

60% (2016)

64% (2005)

78% (2014)

68% (2019)

68% (1984)

73% (2001)

74% (2007)

65% (2006)

71% (2010)

72% (2003)

70% (2011)

68% (2008)