20131685 reads; of these:
  20131685 (100.00%) were paired; of these:
    4670642 (23.20%) aligned concordantly 0 times
    14887255 (73.95%) aligned concordantly exactly 1 time
    573788 (2.85%) aligned concordantly >1 times
    ----
    4670642 pairs aligned concordantly 0 times; of these:
      198929 (4.26%) aligned discordantly 1 time
    ----
    4471713 pairs aligned 0 times concordantly or discordantly; of these:
      8943426 mates make up the pairs; of these:
        6854274 (76.64%) aligned 0 times
        1899866 (21.24%) aligned exactly 1 time
        189286 (2.12%) aligned >1 times
82.98% overall alignment rate