35% (2015)

47% (2012)

40% (2014)

55% (2014)

48% (2015)

51% (2016)

28% (2014)

46% (2013)

30% (2008)

37% (2006)

45% (2010)

58% (2015)

35% (2013)

20% (2010)

47% (2013)

40% (2011)

47% (2007)

78% (2007)

38% (2010)

26% (2015)