49% (2010)

50% (2009)

57% (2017)

43% (2012)

52% (1999)

53% (2011)

46% (2006)

50% (2015)

49% (2016)

46% (2008)

34% (2008)

46% (2008)

53% (2006)

45% (2002)

51% (2016)

53% (2003)

41% (1999)

50% (2018)

48% (2013)

41% (1987)