Upper row: tangential-to-radial force profiles associated with the average bars, binning the sample based on the total stellar mass (left) and the Hubble type (right) of the host galaxy. Lower row: m = 2 normalized Fourier amplitude of the average bars (solid lines) using the same sampling as in the upper panels. The dashed lines correspond to the m = 4 normalized Fourier amplitudes. For all panels, the vertical dotted line corresponds to the end of the bar.