section 27 domestic trade and services this presents statistics relating to the distributive trades service indus tries data shown for classi fied by kind of business various categories eg per sonal repair hotel cover sales or receipts establishments em ployees payrolls other items principal sources these are census reports survey bureau on gross product in industries usually appear current issued us economic analysis financial firms engaged retail wholesale activities annual income published internal revenue censuses have been taken at vari ous intervals since 1929 limited age started 1933 beginning with 1967 legislation provides a each area be conducted every 5 years ending 2 7 covered sur veys those classified three divisions defined standard industrial classification manual see text