But this time the estimates had been provided by HMT, amounting to approximately £70m over the three-year spending review period.
Ond y tro hwn roedd yr amcangyfrifon wedi'u darparu gan Drysorlys Ei Mawrhydi, ac yn cyfateb i oddeutu £70m dros y cyfnod adolygu gwariant o dair blynedd.