4055753 + 0 in total (QC-passed reads + QC-failed reads)
0 + 0 secondary
55753 + 0 supplementary
6987 + 0 duplicates
3701566 + 0 mapped (91.27% : N/A)
4000000 + 0 paired in sequencing
2000000 + 0 read1
2000000 + 0 read2
3436318 + 0 properly paired (85.91% : N/A)
3630386 + 0 with itself and mate mapped
15427 + 0 singletons (0.39% : N/A)
156096 + 0 with mate mapped to a different chr
88657 + 0 with mate mapped to a different chr (mapQ>=5)