71% (2006)

74% (2019)

77% (2006)

70% (2003)

62% (2010)

69% (1999)

71% (2012)

74% (2013)

64% (2018)

64% (2015)

56% (2020)

64% (2017)

65% (2013)

66% (2018)

60% (2005)

68% (1999)

68% (1993)

59% (2002)

56% (2014)

62% (2023)