This dataset, which is open access with appropriate citation, is a systematic review of nationally and sub-nationally representative surveys that include variables on online child sexual exploitation and abuse victimisation. A synthesis of the data as well as detailed technical note can be found via Childlight's website where the 2024 index is housed: https: childlight.org. Permission to copy, disseminate or otherwise use information from the Into the Light Index (ILI) is granted, so long as appropriate acknowledgement is given.