Best-fit and central 95% CL regions for the primordial power spectrum in the three cutoff and the step models for TT data (red curves), EE data (green), and TT,TE,EE data (blue). Note that for the combination of kink cutoff model and TT data, the best-fit value for the cutoff scale lies close to the prior boundary, and therefore the best-fit spectrum does not fall within the central 95%-credible band.