18515476 reads; of these:
  18515476 (100.00%) were paired; of these:
    4587046 (24.77%) aligned concordantly 0 times
    13364424 (72.18%) aligned concordantly exactly 1 time
    564006 (3.05%) aligned concordantly >1 times
    ----
    4587046 pairs aligned concordantly 0 times; of these:
      141654 (3.09%) aligned discordantly 1 time
    ----
    4445392 pairs aligned 0 times concordantly or discordantly; of these:
      8890784 mates make up the pairs; of these:
        6791832 (76.39%) aligned 0 times
        1838337 (20.68%) aligned exactly 1 time
        260615 (2.93%) aligned >1 times
81.66% overall alignment rate