Librarians, researchers, and data scientists have worked to make available government webpages, publicly-funded data sets, and publications.
Below are some different locations where data has been archived. We recommend starting with https://www.findlostdata.org/, created by Boston University's School of Public Health Center for Health Data Science. This website provides a streamlined interface for locating datasets previously hosted on government websites. They also provide a list of included websites and dates last crawled for data.