“The 2012 Economic Census concludes the Geographic Area Series for the transportation and warehousing sector. This series includes statistics for air, rail, and water transportation and warehousing and storage. The files provide statistics on the number of establishments, revenue, payroll, number of employees and other data items by industry. Geographic Area Series data is the only series that provides this data at a U.S. summary level as well as an economic place level; other geographies included are states, combined statistical areas, metropolitan statistical areas, and counties.”