56% (2006)

57% (2007)

55% (2011)

57% (2018)

55% (2005)

72% (2011)

76% (2007)

60% (2011)

65% (2009)

62% (2008)

60% (2008)

50% (2011)

60% (2011)

62% (2005)

75% (2006)

65% (2010)

55% (2010)

61% (2006)

52% (2009)

50% (2010)