60% (2009)

45% (2008)

51% (1999)

45% (2008)

49% (2010)

46% (2008)

50% (2007)

47% (2013)

41% (2005)

55% (2006)

55% (2019)

52% (2011)

47% (2010)

52% (2006)

51% (2016)

56% (2001)

52% (1988)

40% (1989)

59% (2017)

46% (2005)