18515476 reads; of these:
  18515476 (100.00%) were paired; of these:
    4751841 (25.66%) aligned concordantly 0 times
    13304279 (71.85%) aligned concordantly exactly 1 time
    459356 (2.48%) aligned concordantly >1 times
    ----
    4751841 pairs aligned concordantly 0 times; of these:
      140912 (2.97%) aligned discordantly 1 time
    ----
    4610929 pairs aligned 0 times concordantly or discordantly; of these:
      9221858 mates make up the pairs; of these:
        7083469 (76.81%) aligned 0 times
        2013772 (21.84%) aligned exactly 1 time
        124617 (1.35%) aligned >1 times
80.87% overall alignment rate