3870546 + 0 in total (QC-passed reads + QC-failed reads)
0 + 0 duplicates
3870546 + 0 mapped (100.00%:-nan%)
3870546 + 0 paired in sequencing
1966399 + 0 read1
1904147 + 0 read2
1741614 + 0 properly paired (45.00%:-nan%)
2211006 + 0 with itself and mate mapped
1659540 + 0 singletons (42.88%:-nan%)
702600 + 0 with mate mapped to a different chr
0 + 0 with mate mapped to a different chr (mapQ>=5)