MS: ~ 24200 spectra updated
1H NMR: ~ 14800 spectra updated
13C NMR: ~ 13100 spectra updated
FT-IR: ~ 51600 spectra updated
Raman: ~ 3500 spectra
ESR: ~ 2500 spectra
Annual Economic Surveys In addition to conducting the Economic Censuses every five years, the U.S. Census Bureau conducts more than 100 economic surveys covering annual, quarterly, and monthly time periods for various sectors of the economy. These surveys measure a wide variety of economic activities, from capital expenditures for food manufacturing companies to annual auto dealership sales. Includes County Business Patterns.