56% (2015)

63% (2000)

64% (2013)

64% (2009)

70% (2005)

69% (2001)

58% (2003)

59% (2014)

68% (2004)

62% (2014)

69% (2011)

61% (2006)

62% (2004)

60% (2012)

54% (2018)

58% (2009)

68% (2003)

67% (2001)

63% (2005)

65% (2010)