125
10th Congress March 1921 Moscow ca. 700 ca. 300 10th Conference May 1921 Moscow ? 11th Conference December 1921 Moscow
125
116
11th Congress March-April 1922 Moscow
520
154
12th Conference August 1922 Moscow
129
12th Congress April 1923 Moscow
408
417
13th Conference January 1924 Moscow
128
222
13th Congress May 1924 Moscow
748
416
14th Conference April 1925 Moscow
178
392
14th Congress December 1925 Moscow
665
641
15th Conference October-November 1925 Moscow
194
640
15th Congress December 1927 Moscow
898
771
16th Conference April 1929 Moscow
254
679
16th Congress June-July 1930 Moscow
1268
891
17th Conference January-February 1932 Moscow
386
525
17th Congress January-February 1934 Moscow
1225
736
18th Congress March 1939 Moscow
1569
466
18th Conference February 1941 Moscow
456
138
19th Congress October 1952 Moscow
1192
167
20th Congress February 1956 Moscow
1349
81
21st “Extraordinary” Congress January-February 1959 Moscow
1269
106
22nd Congress October 1961 Moscow
4408
