Left reads:
          Input     :  23054045
           Mapped   :  20836672 (90.4% of input)
            of these:   1735284 ( 8.3%) have multiple alignments (39948 have >20)
Right reads:
          Input     :  23054045
           Mapped   :  19223585 (83.4% of input)
            of these:   1561194 ( 8.1%) have multiple alignments (39524 have >20)
86.9% overall read mapping rate.

Aligned pairs:  18870709
     of these:   1516518 ( 8.0%) have multiple alignments
                  307166 ( 1.6%) are discordant alignments
80.5% concordant pair alignment rate.