20564997 + 0 in total (QC-passed reads + QC-failed reads)
0 + 0 duplicates
20564997 + 0 mapped (100.00%:-nan%)
20564997 + 0 paired in sequencing
10582180 + 0 read1
9982817 + 0 read2
17379430 + 0 properly paired (84.51%:-nan%)
18998532 + 0 with itself and mate mapped
1566465 + 0 singletons (7.62%:-nan%)
655428 + 0 with mate mapped to a different chr
0 + 0 with mate mapped to a different chr (mapQ>=5)