AGN fractions measured with CIGALE plotted versus the redshift of the sources: the whole sample is plotted with grey points, the measures for galaxies detected with PACS are represented with red points. The average values and dispersion for each redshift bin are over plotted (black filled circles for the whole sample, red filled circles for the PACS detections). The AGN fractions are always larger than 0 since they are measured as the mean of the PDF. The last redshift bin is not considered for the PACS detections since it contains only 7 sources.