73% (2015)

70% (2016)

64% (2019)

74% (2018)

71% (2011)

68% (2018)

72% (2015)

83% (2022)

74% (2009)

73% (2013)

68% (2024)

68% (2016)

65% (2001)

68% (2011)

67% (2008)

56% (2018)

66% (2014)

65% (2022)

63% (2010)

0% (1970)