Most countries have a national archive for social science data.
This is data about social attitudes, and financial and environmental details, which describe the current and past state of each nation. This information derives from government statistics, and through academic studies, often commissioned by government. These archives are usually a few hundred gigabytes in size, and accessible partially via the Internet and the Web. However, it is becoming increasingly important to allow access across national and linguistic boundaries so that decision makers have a comparative picture of European society. These can be integrated together to show the localisation of potential genetically abnormal populations.