74% (2005)

55% (2018)

68% (2015)

69% (2007)

49% (2014)

63% (2013)

66% (2010)

72% (2003)

65% (2008)

62% (2013)

62% (2001)

75% (2002)

58% (2007)

60% (2004)

63% (2012)

66% (2014)

59% (2015)

76% (2007)

46% (2002)