Left reads:
          Input     :  18262900
           Mapped   :  16682859 (91.3% of input)
            of these:   1038288 ( 6.2%) have multiple alignments (19715 have >20)
Right reads:
          Input     :  18262900
           Mapped   :  15250348 (83.5% of input)
            of these:    916651 ( 6.0%) have multiple alignments (19267 have >20)
87.4% overall read mapping rate.

Aligned pairs:  14972920
     of these:    887488 ( 5.9%) have multiple alignments
                  272885 ( 1.8%) are discordant alignments
80.5% concordant pair alignment rate.