Level from FR Board, FR Y-9LP report, schedule PC, U.S. Treasury securities (series BHCP0400) plus, starting in 2006:Q2, a fraction of FR Board, FR Y-9SP report, schedule SC, Securities (series BHSP0390). The fraction is calculated as the product of series BHSP0390 and the ratio of U.S. Treasury Securities to total Securities (series BHCP0400 divided by the sum of BHCP0400, BHCP6791, and BHCP1299) found on the FR Board, FR Y-9LP report, plus, starting in 2012:Q1, a fraction of FR Board, FR 2320 report, (column A) Parent Only, Cash, Deposits, and Investment Securities (series SLHP0658). The fraction is calculated as the product of series SLHP0658 and the ratio of U.S Treasury securities (series BHCP0400) to the sum of Balances with unrelated depository institutions (series BHCP0100), total Securities (sum of BHCP0400, BHCP6791, and BHCP1299), and Securities purchased under agreements to resell (series BHCP0277) found on the FR Board, FR Y-9LP report. Unadjusted flow is the change in the level; data for the most recent ten years show no significant seasonality.
