More than 18,360 cases have been investigated, providing reports to individuals, loved ones and families, as well as capturing valuable learning for the NHS.
Cynhaliwyd ymchwil i fwy na 18,360 o achosion, gan ddarparu adroddiadau i unigolion, anwyliaid a theuluoedd, yn ogystal â chasglu deunydd dysgu gwerthfawr i'r GIG.