18256141 reads; of these:
  18256141 (100.00%) were paired; of these:
    4626299 (25.34%) aligned concordantly 0 times
    13193440 (72.27%) aligned concordantly exactly 1 time
    436402 (2.39%) aligned concordantly >1 times
    ----
    4626299 pairs aligned concordantly 0 times; of these:
      137507 (2.97%) aligned discordantly 1 time
    ----
    4488792 pairs aligned 0 times concordantly or discordantly; of these:
      8977584 mates make up the pairs; of these:
        6899031 (76.85%) aligned 0 times
        1899524 (21.16%) aligned exactly 1 time
        179029 (1.99%) aligned >1 times
81.10% overall alignment rate