73% (2015)

71% (2014)

68% (2004)

57% (2013)

0% (2006)

55% (2012)

69% (1998)

68% (2015)

72% (2014)

60% (2008)

58% (2011)

62% (2000)

66% (2015)

65% (2009)

52% (2007)

53% (2012)

65% (2014)

65% (2003)

63% (2001)

58% (2009)