60% (2011)

70% (2013)

59% (2005)

61% (2015)

66% (2006)

51% (2012)

52% (2013)

74% (2007)

52% (2005)

59% (2017)

58% (2009)

52% (2002)

71% (2010)

67% (2009)

66% (2005)

42% (2008)

63% (2005)

62% (2003)

55% (2005)

55% (2011)