21462348 reads; of these:
  21462348 (100.00%) were paired; of these:
    8795753 (40.98%) aligned concordantly 0 times
    12333478 (57.47%) aligned concordantly exactly 1 time
    333117 (1.55%) aligned concordantly >1 times
    ----
    8795753 pairs aligned concordantly 0 times; of these:
      33353 (0.38%) aligned discordantly 1 time
    ----
    8762400 pairs aligned 0 times concordantly or discordantly; of these:
      17524800 mates make up the pairs; of these:
        15733902 (89.78%) aligned 0 times
        1684656 (9.61%) aligned exactly 1 time
        106242 (0.61%) aligned >1 times
63.35% overall alignment rate