000 - Computer science, information, general works
731
100 - Philosophy & psychology
2,793
200 - Religion
921
300 - Social sciences
17,311
400 - Language
606
500 - Natural sciences and mathematics
1,143
600 - Technology (Applied sciences)
3,191
700 - The arts
2,550
800 - Literature (Belles-lettres) and rhetoric
4,622
900 - History & geography
3,423