file	normalization factor	total signal
SRR1274637.bedGraph	0.896023	1116043162
SRR1274638.bedGraph	0.898646	1112784635
SRR1274634.bedGraph	0.551702	1812573653
SRR1274633.bedGraph	0.608867	1642393669
SRR1274631.bedGraph	0.576403	1734897822
SRR1274635.bedGraph	0.747032	1338630655
SRR1274636.bedGraph	0.737903	1355190912
SRR1274632.bedGraph	0.414984	2.40973e+09