64% (2013)

56% (2004)

68% (1998)

70% (2005)

67% (2010)

64% (2006)

63% (2000)

59% (2014)

69% (2004)

66% (2018)

62% (2004)

63% (2005)

57% (2009)

69% (2011)

61% (2014)

56% (2017)

66% (2016)

58% (2003)

64% (2009)

67% (2001)