73% (2011)

71% (2013)

63% (2007)

60% (2024)

72% (2018)

70% (2014)

70% (2016)

65% (1999)

63% (2024)

65% (2004)

64% (2008)

60% (2000)

56% (1997)

60% (2007)

65% (2014)

62% (2017)

59% (1973)

68% (1998)

52% (2015)

58% (2014)