00	General	20,743
01	History and biography	11,890
03	Mathematical logic and foundations	7,118
05	Combinatorics	8,494
06	Orders, lattices, ordered algebraic structures	2,755
08	General algebraic systems	2,494
11	Number theory	11,472
12	Field theory and polynomials	4.437
13	Commutative rings and algebras	5,259
14	Algebraic geometry	8,886
15	Linear and multilinear algebra; matrix theory	5,949
16	Associative rings and algebras	3,646
17	Nonassociative rings and algebras	2,994
18	Category theory, homological algebra	3,417
19	K-theory	2,305
20	Group theory and generalizations	7,628
22	Topological groups, Lie groups	6,470
26	Real functions	5,514
28	Measure and integration	6,206
30	Functions of a complex variable	6,999
31	Potential theory	1,950
32	Several complex variables and analytic spaces	4,151
33	Special functions	2,551
34	Ordinary differential equations	8,420
35	Partial differential equations	11,641
37	Dynamical systems and ergodic theory	3,454
39	Finite differences and functional equations	2,455
40	Sequences, series, summability	2,505
41	Approximations and expansions	3,084
42	Fourier analysis	4,963
43	Abstract harmonic analysis	2,706
44	Integral transforms, operational calculus	1,899
45	Integral equations	2,354
46	Functional analysis	8,829
47	Operator theory	5,102
49	Calculus of variations and optimal control; optimization	5,427
51	Geometry	5,953
52	Convex and discrete geometry	3,144
53	Differential geometry	8,661
54	General topology	5,170
55	Algebraic topology	6,208
57	Manifolds and cell complexes	5,671
58	Global analysis, analysis on manifolds	7,195
60	Probability theory and stochastic processes	8.515
62	Statistics	5,649
65	Numerical analysis	87,742
68	Computer science	10,081
70	Mechanics of particles and systems	2,709
74	Mechanics of deformable solids	1,322
76	Fluid mechanics	3,284
78	Optics, electromagnetic theory	1,524
80	Classical thermodynamics, heat transfer	986
81	Quantum theory	5,214
82	Statistical physics, structure of matter	2,280
83	Relativity and gravitational theory	3,239
85	Astronomy and astrophysics	2,220
86	Geophysics	968
90	Operations research, mathematical programming	5,856
91	Game theory, economics, social and behavorial sciences	4,053
92	Biology and other natural sciences	4,879
93	Systems theory; control	3,023
94	Information and communications, circuits	3,326
97	Mathematics education	6,212