20804015 reads; of these:
  20804015 (100.00%) were paired; of these:
    5293388 (25.44%) aligned concordantly 0 times
    15045847 (72.32%) aligned concordantly exactly 1 time
    464780 (2.23%) aligned concordantly >1 times
    ----
    5293388 pairs aligned concordantly 0 times; of these:
      52390 (0.99%) aligned discordantly 1 time
    ----
    5240998 pairs aligned 0 times concordantly or discordantly; of these:
      10481996 mates make up the pairs; of these:
        8179080 (78.03%) aligned 0 times
        2177547 (20.77%) aligned exactly 1 time
        125369 (1.20%) aligned >1 times
80.34% overall alignment rate