66% (2010)

63% (2013)

58% (2015)

49% (2012)

44% (1994)

56% (2001)

46% (2007)

52% (2020)

50% (2015)

47% (2010)

43% (2009)

41% (2005)

55% (2015)

55% (2003)

46% (2008)

45% (2008)

46% (2015)

62% (1992)

49% (2015)

48% (2010)