21277746 reads; of these:
  21277746 (100.00%) were paired; of these:
    16507014 (77.58%) aligned concordantly 0 times
    4609731 (21.66%) aligned concordantly exactly 1 time
    161001 (0.76%) aligned concordantly >1 times
    ----
    16507014 pairs aligned concordantly 0 times; of these:
      15613 (0.09%) aligned discordantly 1 time
    ----
    16491401 pairs aligned 0 times concordantly or discordantly; of these:
      32982802 mates make up the pairs; of these:
        32226496 (97.71%) aligned 0 times
        677729 (2.05%) aligned exactly 1 time
        78577 (0.24%) aligned >1 times
24.27% overall alignment rate