Distribution of the number of clumps in the disk versus its SFR (upper-left panel), the core stellar mass fraction (upper-right panel), and the redshift (lower panel). In the upper panels, galaxies are divided in two groups depending on the star-forming activity of their disk or of their core (left and right panel respectively). Circular markers are individual galaxies, star markers are the mean value for different groups of galaxies with their associated error bar indicating the error of the mean. In the lower panel, the line is a linear regression of the distribution showing an increase of the average number of clumps with redshift