18697371 reads; of these:
  18697371 (100.00%) were paired; of these:
    4739113 (25.35%) aligned concordantly 0 times
    5886367 (31.48%) aligned concordantly exactly 1 time
    8071891 (43.17%) aligned concordantly >1 times
    ----
    4739113 pairs aligned concordantly 0 times; of these:
      118359 (2.50%) aligned discordantly 1 time
    ----
    4620754 pairs aligned 0 times concordantly or discordantly; of these:
      9241508 mates make up the pairs; of these:
        6876307 (74.41%) aligned 0 times
        1123220 (12.15%) aligned exactly 1 time
        1241981 (13.44%) aligned >1 times
81.61% overall alignment rate