4459973 reads; of these:
  4459973 (100.00%) were paired; of these:
    2265836 (50.80%) aligned concordantly 0 times
    2145999 (48.12%) aligned concordantly exactly 1 time
    48138 (1.08%) aligned concordantly >1 times
    ----
    2265836 pairs aligned concordantly 0 times; of these:
      12586 (0.56%) aligned discordantly 1 time
    ----
    2253250 pairs aligned 0 times concordantly or discordantly; of these:
      4506500 mates make up the pairs; of these:
        3182636 (70.62%) aligned 0 times
        1309687 (29.06%) aligned exactly 1 time
        14177 (0.31%) aligned >1 times
64.32% overall alignment rate