The variable ploted here is NA.tr.tof (no veto filttering) the number of T5 events - 82,004 after CT && hrs cuts are - 52,145
the command line used for this histogram is -
chain.Draw("NA.tr.tof",CT && hrs && "SK.Mrecoil<10.5 && NA.tr.tof>100 && NA.tr.tof<600 && abs(NA.tr.phi)<.08 && NA.tr.firstpad!=0 && NA.tr.energy>0 && NA.tr.nhits<3" )
Figure 1
ntof2.ps