72% (1999)

82% (1998)

74% (2010)

76% (2015)

80% (2007)

71% (2003)

71% (1991)

70% (1993)

73% (1995)

65% (2018)

81% (2014)

74% (2011)

62% (2012)

63% (2002)

73% (1999)

72% (2019)

67% (2009)

69% (2016)

61% (2018)

63% (2004)