66% (2010)

58% (2015)

63% (2013)

49% (2012)

48% (2010)

39% (2014)

42% (2011)

60% (2009)

50% (2010)

52% (2020)

43% (2009)

43% (2012)

53% (2011)

50% (2016)

50% (2018)

46% (2008)

59% (2008)

45% (2008)

51% (1988)

41% (2005)