63% (2010)

67% (2008)

63% (2014)

64% (2012)

61% (2016)

66% (2011)

57% (2006)

44% (2006)

62% (2009)

60% (2009)

57% (2006)

52% (2008)

58% (2007)

53% (2005)

61% (2006)

55% (2008)

45% (2007)