http://www.experian.co.uk/consumer/statutory-report.html
https://www.equifax.co.uk/Products/credit/statutory-report.h...
http://www.callcredit.co.uk/consumer-solutions/your-credit-r...
You can alternatively use the free online services:
Noddle use data from Callcredit, and Clearscore use data from Equifax - I don't think there is a free service exposing Experian data.