#chr	length	GC%
chr1	2746313	0.418856845523
chr2	2216979	0.418646726018
chr3	2000793	0.415733661603
chr4	2019511	0.409520918678
chrM	2595	0.312524084778
chrP	24173	0.165763455095
# total	9010364.0	0.415309525786