21277746 reads; of these:
  21277746 (100.00%) were paired; of these:
    16506282 (77.58%) aligned concordantly 0 times
    4611691 (21.67%) aligned concordantly exactly 1 time
    159773 (0.75%) aligned concordantly >1 times
    ----
    16506282 pairs aligned concordantly 0 times; of these:
      14637 (0.09%) aligned discordantly 1 time
    ----
    16491645 pairs aligned 0 times concordantly or discordantly; of these:
      32983290 mates make up the pairs; of these:
        32219057 (97.68%) aligned 0 times
        683886 (2.07%) aligned exactly 1 time
        80347 (0.24%) aligned >1 times
24.29% overall alignment rate