Select Samples

Variable documentation on the web site can be filtered to display only material corresponding to chosen datasets (more information on this feature).

Please note that the USA full count samples require special usage terms. Users must agree to these terms before downloading these data.

1940 100%  
1930 100%  
1920 100%  
1910 100%  
1900 100%  
1880 100%  
1870 100% Preliminary data release.  
1860 100% Preliminary data release.  
1850 100%