68% (2013)

66% (2018)

69% (2007)

50% (2004)

52% (1990)

53% (2003)

61% (2008)

42% (2020)

57% (2011)

56% (1991)

48% (1999)

52% (2012)

52% (2015)

68% (2006)

37% (2013)

58% (2017)

62% (2015)

63% (2012)

51% (2009)

41% (2006)