The International Records Management Trust published a Sierra Leone case study in October 2008 as part of its international research programme Fostering Trust and Transparency in Governance: Investigating and Addressing the Requirements for Building Integrity in Public Sector Information Systems in the ICT Environment. Salvageable records in the Ministry of Education's store were filed. Hard and soft copies of records provided by the Accountant General's Department, Sierra Leone Teachers Union (SLTU) and National Social Security and Insurance Trust (NASSIT) were also filed. The teacher's records management improvement programme was funded initially by the government of Sierra Leone to create an individual hard-copy file for each teacher on the payroll. The World Bank's most recent data indicated that public expenditure on education was 4.3 per cent of GDP in 2009; and that public expenditure on education was 18.1 per cent of total public expenditure in 2009. Faith-based organisations also provide the recruiting/employing authority for a large number of government-assisted schools.