Revised set of SDIs.
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This revised set replaces the previous SDIs which had been maintained by Defra since 2001. This set is formed of fewer indicators: 12 headline and 23 supplementary indicators, comprising 25 and 41 measures respectively.
The reduced size of the set follows the example of other international institutions in identifying a core set of headline indicators to highlight sustainable development priorities for users and government. It was also in part prompted by the need for alignment with the Office for National Statistics’ (ONS) development of national wellbeing measures.
The indicators provide an overview of national progress towards a more sustainable economy, society and environment.