Source: US. Bureau of the Census
Release: Annual Services Survey
For further information, please refer to the US Census Bureau's Annual Services release, online at http://www.census.gov/services/.
US. Bureau of the Census, Total Revenue for Deep Sea Freight Transportation, Establishments Subject To Federal Income Tax, Employer Firms [REVEF483111TAXABL], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/REVEF483111TAXABL, October 23, 2016.