Swift-BAT light curves of nine bright SGRBs. The main panels show the light curves of prompt emission, with a 128 ms time resolution in the 15–150 keV band. The inserted panels also show the following long-lasting X-ray emission up to 200 s since the SGRB trigger, with an 8 s time resolution in the  15–25 keV band. We can clearly confirm extended X-ray emission for three events (GRB 050724, 070714B, and 080503).