Source of presented data are annual statistical reports S-10 (on higher education), S-11 (on material and social support for students and students of doctoral studies) and S-12 (on scholarships, post-graduate and doctoral studies as well as on employment in higher education institutions, science and research institutes). Information on the higher institutions includes foreign students studying in Poland (including persons who study in the branches of Polish universities located abroad), does not include Polish citizens who are studying abroad (excluding persons who study in the branches of Polish universities located abroad).