file	normalization factor	total signal
SRR540249.bedGraph	1.353633	738752495
SRR540246.bedGraph	1.307076	765066672
SRR540250.bedGraph	1.604472	623258087
SRR540251.bedGraph	1.402758	712881087
SRR540248.bedGraph	1.215941	822408000
SRR540247.bedGraph	1.501649	665934625