18719382 reads; of these:
  18719382 (100.00%) were paired; of these:
    3418778 (18.26%) aligned concordantly 0 times
    14644676 (78.23%) aligned concordantly exactly 1 time
    655928 (3.50%) aligned concordantly >1 times
    ----
    3418778 pairs aligned concordantly 0 times; of these:
      157994 (4.62%) aligned discordantly 1 time
    ----
    3260784 pairs aligned 0 times concordantly or discordantly; of these:
      6521568 mates make up the pairs; of these:
        4847329 (74.33%) aligned 0 times
        1457693 (22.35%) aligned exactly 1 time
        216546 (3.32%) aligned >1 times
87.05% overall alignment rate