20804015 reads; of these:
  20804015 (100.00%) were paired; of these:
    5289929 (25.43%) aligned concordantly 0 times
    14976522 (71.99%) aligned concordantly exactly 1 time
    537564 (2.58%) aligned concordantly >1 times
    ----
    5289929 pairs aligned concordantly 0 times; of these:
      51256 (0.97%) aligned discordantly 1 time
    ----
    5238673 pairs aligned 0 times concordantly or discordantly; of these:
      10477346 mates make up the pairs; of these:
        8167195 (77.95%) aligned 0 times
        2160878 (20.62%) aligned exactly 1 time
        149273 (1.42%) aligned >1 times
80.37% overall alignment rate