68% (2023)

63% (2022)

58% (2016)

62% (2013)

73% (2017)

66% (2009)

64% (2011)

72% (2014)

62% (2017)

62% (2006)

72% (2022)

65% (2007)

61% (2005)

60% (2017)

50% (2018)