242As regards, second, the argument based on sufficient deterrent effect in the light of the Commission’s practice when setting multipliers, it is sufficient to point out that the Commission’s practice in earlier decisions does not itself serve as a legal framework for fines imposed in competition matters, since that framework is defined solely in Regulation No 1/2003 and the Guidelines (see, to that effect, Joined Cases C-125/07 P, C-133/07 P, C-135/07 P and C-137/07 PErste Group Bank and Others v Commission [2009] ECR I-8681, paragraph 233 and the case-law cited, and Case T-203/01Michelin v Commission [2003] ECR II-4071, paragraph 292).