Contribution of our HLIRGs to the cosmic stellar mass density (left panel) and the cosmic SFR density (right panel). In the right panel, black solid and dashed lines are taken from Hopkins & Beacom (2006) and Madau & Dickinson (2014), respectively. Squares represent various studies of the global SFR density. Blue and red area and circles are contribution from LIRGs and ULIRGs respectively, taken from Le Floc’h et al. (2005), Magnelli et al. (2011) (hatched area) and Casey et al. (2012) (circles). All data points are converted to the Salpeter IMF.