51% (2017)

54% (2015)

45% (2016)

58% (2016)

27% (2011)

46% (2015)

46% (2014)

54% (2018)

32% (2013)

52% (2012)

46% (2016)

40% (2013)

48% (2012)

30% (2015)

53% (2016)

53% (2014)

45% (2013)

42% (2012)

34% (2012)

55% (2012)