Annual unadjusted flow from BEA, NIPA. Series calculated as Table 1.14, line 2, Corporate business: Consumption of fixed capital; less line 18, Nonfinancial corporate business: Consumption of fixed capital; plus an unpublished estimate of noncorporate financial business consumption of fixed capital provided by BEA. Quarterly unadjusted flow from unpublished detail provided by BEA. Data for the most recent ten years show no significant seasonality. Series has no levels.