44% (2015)

69% (2004)

66% (2010)

61% (2013)

68% (2011)

60% (2016)

58% (2015)

49% (2012)

68% (2016)

53% (2014)

59% (2015)

49% (2009)

59% (2007)

57% (2015)

56% (2012)

52% (2014)

67% (2013)

62% (2003)

67% (2002)

57% (2012)