Left reads:
          Input     :  31813557
           Mapped   :  16663017 (52.4% of input)
            of these:   1494565 ( 9.0%) have multiple alignments (16372 have >20)
Right reads:
          Input     :  31813557
           Mapped   :  15517086 (48.8% of input)
            of these:   1386460 ( 8.9%) have multiple alignments (16382 have >20)
50.6% overall read mapping rate.

Aligned pairs:  15052293
     of these:   1341358 ( 8.9%) have multiple alignments
                   57386 ( 0.4%) are discordant alignments
47.1% concordant pair alignment rate.