69% (2004)

60% (2016)

62% (2013)

69% (2011)

68% (2016)

57% (2012)

66% (2010)

67% (2013)

49% (2009)

65% (2008)

68% (2002)

60% (2007)

50% (2008)

52% (2014)

45% (2013)

52% (2013)

59% (2015)

61% (2003)

54% (2014)

57% (2015)