Level from financial statements compiled by and purchased from SNL Financial. Year-end level is the sum of Annual Statement, table Assets, line 6, Policy loans, and Separate Accounts Statement, table Assets, line 5, Contract loans. Level for other quarters is the sum of Quarterly Statement, table Assets, line 6, Contract loans, and FOF Section estimate of policy loans held in separate accounts. Unadjusted flow is the change in the level; data for the most recent ten years show no significant seasonality.