73% (2005)

70% (2014)

82% (2020)

68% (2006)

64% (2023)

62% (2015)

65% (1999)

68% (2007)

70% (2015)

67% (2007)

75% (2013)

58% (2012)

59% (1990)

67% (1973)

69% (2007)

65% (1981)

65% (2023)

64% (2023)

56% (2020)

57% (2018)