65% (2024)

74% (2009)

62% (2015)

63% (2023)

59% (2023)

65% (2014)

62% (2020)

63% (2018)

58% (2022)

67% (2015)

67% (2019)

59% (2019)

61% (2010)

63% (2016)

59% (2011)

70% (2011)

71% (2023)

58% (2010)

49% (2013)

0% (1970)