Median velocity of the high-speed line wing (see text for details) as a function of the AGN bolometric luminosity. Green diamonds show HEGs, blue crosses show BLOs, red squares show LEGs, black circles show the spectroscopically unclassified sources, and the cyan circle represents the star forming galaxy. The empty symbols at the top of the figure represent sources without a detected line wing. The various classes show similar outflow velocities.