71% (2023)

62% (2012)

71% (2017)

54% (2009)

55% (2009)

68% (2007)

72% (2003)

63% (2011)

62% (2011)

66% (2003)

59% (2017)

70% (2011)

67% (1971)

56% (1996)

37% (2009)

62% (2020)

71% (2020)

48% (2007)

58% (2016)

65% (2012)