66% (2010)

63% (2013)

58% (2015)

49% (2012)

39% (2014)

52% (2020)

50% (2018)

60% (2009)

46% (2007)

42% (2011)

43% (2012)

58% (2008)

55% (2006)

49% (2010)

34% (2008)

55% (2015)

42% (2009)

42% (2011)

46% (2008)

47% (2010)