1931 Census of England and Wales, General Report, Table 39 : " Countries arranged in Order of 1931 Sex Proportions, showing also 1921 Comparisons".

  Proportion of Females to 1,000 Males
1931* 1921*
Dominion of Canada 931 940
Indian Empire 941 945
New Zealand 958 956
Union of South Africa 965 959
Commonwealth of Australia 969 967
United States of America 976 961
Japan 984 990
Bulgaria 991 1,002
The Netherlands 1,013 1,013
Belgium 1,019 1,033
Chili 1,020 1,012
Sweden 1,031 1,037
Mexico 1,039 1,047
Hungary 1,044 1,062
Denmark 1,045 1,053
Italy 1,045 1,028
Spain 1,050 1,062
Norway 1,051 1,053
Germany 1,058 1,099
Czecho-Slovakia 1,062 1,075
France 1,071 1,103
Switzerland 1,077 1,074
Austria 1,081 1,089
Scotland 1,082 1,080
England and Wales 1,088 1,096
Portugal 1,096 1,113

*The figures relate to the census nearest these dates