76% (2006)

61% (2009)

55% (2005)

59% (2007)

69% (1951)

69% (2002)

56% (2009)

49% (2015)

73% (1955)

64% (2008)

61% (2010)

67% (1958)

72% (1942)

70% (1953)

56% (2006)

77% (1949)

68% (1949)

63% (2009)

72% (1945)

51% (2007)