The OFFICE FOR NATIONAL STATISTICS (ONS) is the largest producer of official statistics to government. ONS is responsible for producing a wide range of key economic and social statistics which are used by policy makers across government to create evidence-based policies and monitor performance against them. The Office also builds and maintains data sources both for itself and for its business and research customers. It makes statistics available so that everyone can easily assess the state of the nation, the performance of government, and their own position.