Methods of Calculation — Policy Reforms

Entry	Year	Description	Impact
Statistics Act	2008	Replaced the Collection of Statistics Act 1953, providing comprehensive legal framework for statistical data collection including national income calculation. Established mandatory data provision requirements and penalties for non-compliance.	Strengthened the legal basis for national income data collection, improved response rates for economic surveys, and enhanced the quality and coverage of statistical information used in all three calculation methods.
National Statistical Commission Act	2005	Established the National Statistical Commission as an autonomous body to oversee statistical activities including national income methodology. Created institutional framework for statistical governance and quality assurance.	Improved coordination between statistical agencies, enhanced methodological consistency in national income calculation, and provided independent oversight of statistical practices and data quality.