Unobscured and dust-corrected SFR density of the universe (blue and red solid circles, respectively, with 1σ error bars) derived from our new UV LF results at z = 2–9 and integrating down to −13 mag (as in Figure 9). The right axis gives the equivalent UV luminosity density vs. redshift. The light blue shaded contours indicate approximate 95% confidence intervals on the unobscured SFR and UV luminosity densities, while the light-red shaded contours illustrate the overall trends in the evolution of the SFR density. The present determinations of the SFR density are higher than similar determinations from Madau & Dickinson (2014; dotted line) due to our integrating ∼4 mag farther down the UV LF (to a faint-end limit of −13 mag vs. −17 mag used by Madau & Dickinson 2014), use of new constraints on the obscured SFR density at z ≥ 4 from the Atacama Large Millimeter/submillimeter Array and Herschel (shown in Figure 9), and use of the Magnelli et al. (2013) constraints at z ≤ 2.