21243397 reads; of these:
  21243397 (100.00%) were paired; of these:
    16408023 (77.24%) aligned concordantly 0 times
    4094906 (19.28%) aligned concordantly exactly 1 time
    740468 (3.49%) aligned concordantly >1 times
    ----
    16408023 pairs aligned concordantly 0 times; of these:
      4857432 (29.60%) aligned discordantly 1 time
    ----
    11550591 pairs aligned 0 times concordantly or discordantly; of these:
      23101182 mates make up the pairs; of these:
        14525070 (62.88%) aligned 0 times
        5930112 (25.67%) aligned exactly 1 time
        2646000 (11.45%) aligned >1 times
65.81% overall alignment rate