Membership Data
| Year |
Clergy |
Churches |
Members |
| 1925 |
189 |
179 |
256,000 |
| 1929 |
241 |
226 |
289,000 |
| 1931 |
- |
- |
289,000 |
| 1933 |
- |
254 |
289,000 |
| 1935 |
280 |
255 |
289,000 |
| 1937 |
- |
260 |
305,000 |
| 1940 |
- |
355 |
425,000 |
| 1942 |
- |
275 |
650,000 |
| 1944 |
- |
280 |
- |
| 1946 |
- |
- |
275,000 |
| 1947 |
- |
286 |
300,000 |
| 1950 |
325 |
320 |
1,000,000 |
| 1952 |
330 |
320 |
1,000,000 |
| 1953 |
375 |
325 |
1,000,000 |
| 1954 |
410 |
347 |
1,000,000 |
| 1955 |
- |
353 |
1,000,000 |
| 1956 |
400 |
378 |
1,150,000 |
| 1957 |
400 |
378 |
1,150,000 |
| 1958 |
- |
378 |
1,150,000 |
| 1959 |
485 |
380 |
1,200,000 |
| 1960 |
491 |
382 |
1,200,000 |
| 1962 |
510 |
405 |
1,500,000 |
| 1963 |
537 |
420 |
1,550,000 |
| 1964 |
558 |
441 |
1,735,000 |
| 1965 |
767 |
443 |
1,770,000 |
| 1969 |
586 |
470 |
1,875,000 |
| 1970 |
585 |
471 |
1,875,000 |
| 1971 |
650 |
482 |
1,950,000 |
| 1972 |
675 |
502 |
1,950,000 |
| 1975 |
675 |
502 |
1,950,000 |
| 1977 |
655 |
535 |
1,950,000 |
| 1997 |
- |
532 |
1,950,000 |
| 1998 |
806 |
523 |
1,954,500 |
| 2000 |
893 |
508 |
1,500,000 |
| 2003 |
803 |
510 |
1,500,000 |
| 2004 |
834 |
563 |
1,500,000 |
|