Left reads:
          Input     :  31878952
           Mapped   :  16523547 (51.8% of input)
            of these:   1160319 ( 7.0%) have multiple alignments (12798 have >20)
Right reads:
          Input     :  31878952
           Mapped   :  15502663 (48.6% of input)
            of these:   1088908 ( 7.0%) have multiple alignments (12795 have >20)
50.2% overall read mapping rate.

Aligned pairs:  15053392
     of these:   1055126 ( 7.0%) have multiple alignments
                   58592 ( 0.4%) are discordant alignments
47.0% concordant pair alignment rate.