Year-end level calculated from the SOI, Corporation Income Tax Returns, Returns of Active Corporations, Table 6 - Balance Sheet, Income Statement, Tax, and Other Selected Items, by Major Industry, excluding the industries of finance and insurance, management of companies, and unpublished detail on equity REITs, line Tax-exempt securities. Levels for other quarters, including year-end quarters after the latest issue of the SOI from QFR, Table 70.1 - Balance Sheet for Corporations in the NAICS Manufacturing Sector, Total Assets $25 Million and Over, line State and local government securities, due in 1 year or less, multiplied by the ratio of the most recent SOI benchmark for tax-exempt securities to the QFR state and local government securities, due in 1 year or less. Unadjusted flow is the change in the level; data for the most recent ten years show no significant seasonality.
