From Arthur S. Banks, to quantify variables covered in Stateman's Yearbook. Over 200 indicators spanning 200 countries, some dating to 1815. Variables cover trade, conflict, infrastructure, expenditure, more.
All countries, 1900-present, on various measures of democracy. Measures these democratic qualities: Electoral, Liberal, Participatory, Majoritarian, Consensual, Deliberative, and Egalitarian. Also provides subcomponent measures re. elections, judiciary, etc.