The document provides statistics on the distribution of self-learning modules (SLMs) across key stages 1 through 4. It shows that for key stage 3, 422 modules were CO modules (12.04%), 2,410 were PIVOT modules (68.78%), and 672 were localized SDO modules (19.18%). For key stage 4, 472 modules were CO modules (36.11%), 765 were PIVOT modules (58.53%), and 70 were localized SDO modules (5.36%).