Stacked SEDs of our star-forming mass-selected samples in bins of redshift (horizontally) and stellar mass (vertically). Stacked points are shown as empty circles, and the best-fit CE01 template is shown as the solid red curve. Gray data points were not used in the fit because they are probing rest-frame wavelengths below 30 μm. The data points have been corrected for the contribution of galaxy clustering (see Table B.2). In the bins where the signal is too low (typically <5σ), we plot 3σ upper limits as downward triangles.