Constraints on the time evolution of biasing. The shaded band shows the predicted ﹩s_{3}﹩ from a simple model (see § 5 for details). Filled symbols show ﹩S_{3}﹩ measured at 0﹩\fdg﹩04, where the FORCE error bars are the smallest. Strictly, each ﹩S_{3}﹩ is at a slightly different scale in comoving ﹩h^{-1}\,\mathrm{Mpc}\,﹩, but because of the flat scaling of ﹩S_{3}﹩ this is not an important effect. The centered error bars on all data points are those derived from the FORCE package. The right‐shifted error bars for the two faintest data points are the ﹩\mathrm{FORCE}\,+\mathrm{systematic}\,﹩ errors (see § 4.1.1 for details).