"... captures and saves U.S. Government websites at the end of presidential administrations. Beginning in 2008, the EOT has thus far preserved websites from administration changes in 2008, 2012 and 2016."
Funded by the National Science Foundation, this survey is conducted by the National Opinion Research Center (NORC) in even years to provide a non-biased view of public opinion on a variety of policy issues and public confidence in U.S. institutions.
Gapminder brings together data gathered from international sources on health, the environment, infrastructure and employment. Search for international statistics on a variety of indicators. Go to the Tools menu to see bubble charts on selected indicators, then How to Use to see help videos and get a link to download the free software for making your own visualizations. "GapMinder [Foundation] is an independent Swedish foundation with no political, religious, or economic affiliations."
Census and survey data for 98 countries as of July 2020; some data is available for as far back as the 1960s. Register to create a free account that will allow you to download specific data based on criteria you set and use it in other applications.