19912778 reads; of these:
  19912778 (100.00%) were paired; of these:
    15767025 (79.18%) aligned concordantly 0 times
    3366757 (16.91%) aligned concordantly exactly 1 time
    778996 (3.91%) aligned concordantly >1 times
    ----
    15767025 pairs aligned concordantly 0 times; of these:
      7516356 (47.67%) aligned discordantly 1 time
    ----
    8250669 pairs aligned 0 times concordantly or discordantly; of these:
      16501338 mates make up the pairs; of these:
        6787400 (41.13%) aligned 0 times
        6826110 (41.37%) aligned exactly 1 time
        2887828 (17.50%) aligned >1 times
82.96% overall alignment rate