53% (2008)

44% (2009)

62% (2005)

56% (2005)

46% (2002)

49% (2006)

35% (2006)

45% (2007)

51% (2000)

54% (2007)

51% (1999)

48% (2007)

62% (2002)

39% (2008)

57% (1983)

45% (1983)

45% (2003)

52% (2013)

41% (2005)

45% (2006)