74% (2011)

49% (2008)

62% (2014)

60% (2013)

56% (2007)

47% (2014)

67% (2010)

52% (2014)

43% (2016)

62% (2012)

53% (2006)

44% (2012)

59% (2007)

53% (2006)

48% (2006)

64% (2011)

49% (2012)

71% (2016)

56% (2010)

57% (2008)