on the state's spending history. These block grant amounts proved to be more than the states could initially spend, as AFDC and TANF caseloads dropped by 40% from 1994 to 1998 due to the booming economy. As a result, states had accumulated surpluses which could be spent in future years. States also had the flexibility to use these funds for child care and other programs. CBO also estimated that TANF outlays (actual spending) would total $12.6 billion in fiscal years 1999 and 2000, grow to $14.2 billion by 2002, and reach $19.4 billion by 2009. For scale, total spending in FY 2000 was approximately $2 trillion, so this represents around 0.6%. Further, CBO estimated that unspent balances would grow from $7.1 billion in 1998 to $25.4 billion by 2005. Impact on caseloads and employment The law's effect goes far beyond the minor budget impact, however. The Brookings Institution reported in 2006 that: "With its emphasis on work, time limits, and sanctions against states that did not place a large fraction of its caseload in work programs and against individuals who refused to meet state work requirements, TANF was a historic reversal of the entitlement welfare represented by AFDC. If the 1996 reforms had their intended effect of reducing welfare dependency, a leading indicator of success would be a declining welfare caseload. TANF administrative data reported by states to the federal government show that caseloads began declining in the spring of 1994 and fell even more rapidly after the federal legislation was enacted in 1996. Between 1994 and 2005, the caseload declined about 60 percent. The number of families receiving cash welfare is now the lowest it has been since 1969, and the percentage of children on welfare is lower than it has been since 1966." The effects were particularly significant on single mothers; the portion of employed single mothers grew from 58% in 1993 to 75% by 2000. Employment among never-married mothers increased from 44% to 66%. Impact on crime A 2017 study in the American Economic Review by Crystal S. Yang examined the effects of the Personal Responsibility and Work Opportunity Reconciliation Act's ban on welfare benefits and food stamps to individuals convicted of felony drug offenses. Yang determined that access to welfare and food stamps at the time of release "substantially decreases recidivism among newly released drug offenders". Earned Income Tax Credit Effect Besides the economic trends occurring