"This series of reports has been revised and represents an extension of the existing County Business Patterns program. This revised series of reports starting with 1974 provide data covering most of the economic divisions of the economy, i.e., agricultural services, mining, construction, manufacturing, transportation, public utilities, wholesale trade, retail trade, finance, insurance, real estate, and services. The inclusion of the data collected by the Bureau of Census Annual Organization Survey permits the revised program to include data on total payroll for the entire year"--Page v.