510491 reads; of these:
  510491 (100.00%) were paired; of these:
    248671 (48.71%) aligned concordantly 0 times
    213065 (41.74%) aligned concordantly exactly 1 time
    48755 (9.55%) aligned concordantly >1 times
    ----
    248671 pairs aligned concordantly 0 times; of these:
      579 (0.23%) aligned discordantly 1 time
    ----
    248092 pairs aligned 0 times concordantly or discordantly; of these:
      496184 mates make up the pairs; of these:
        480951 (96.93%) aligned 0 times
        13353 (2.69%) aligned exactly 1 time
        1880 (0.38%) aligned >1 times
52.89% overall alignment rate