257635 reads; of these:
  257635 (100.00%) were paired; of these:
    254188 (98.66%) aligned concordantly 0 times
    2114 (0.82%) aligned concordantly exactly 1 time
    1333 (0.52%) aligned concordantly >1 times
    ----
    254188 pairs aligned concordantly 0 times; of these:
      18 (0.01%) aligned discordantly 1 time
    ----
    254170 pairs aligned 0 times concordantly or discordantly; of these:
      508340 mates make up the pairs; of these:
        508192 (99.97%) aligned 0 times
        114 (0.02%) aligned exactly 1 time
        34 (0.01%) aligned >1 times
1.37% overall alignment rate