19497147 reads; of these:
  19497147 (100.00%) were paired; of these:
    3935382 (20.18%) aligned concordantly 0 times
    15005201 (76.96%) aligned concordantly exactly 1 time
    556564 (2.85%) aligned concordantly >1 times
    ----
    3935382 pairs aligned concordantly 0 times; of these:
      143685 (3.65%) aligned discordantly 1 time
    ----
    3791697 pairs aligned 0 times concordantly or discordantly; of these:
      7583394 mates make up the pairs; of these:
        5650216 (74.51%) aligned 0 times
        1721602 (22.70%) aligned exactly 1 time
        211576 (2.79%) aligned >1 times
85.51% overall alignment rate