73% (2012)

69% (2015)

68% (2023)

69% (2022)

64% (2009)

66% (2017)

66% (2006)

70% (2010)

65% (2002)

69% (2005)

65% (2018)

55% (2008)

60% (2016)

59% (2013)

54% (2009)

58% (2009)

59% (2007)

63% (2007)

56% (2005)

64% (2007)