Left reads:
          Input     :  27881332
           Mapped   :  18258376 (65.5% of input)
            of these:   1281366 ( 7.0%) have multiple alignments (495680 have >20)
Right reads:
          Input     :  27881332
           Mapped   :  17936932 (64.3% of input)
            of these:   1327227 ( 7.4%) have multiple alignments (495677 have >20)
64.9% overall read mapping rate.

Aligned pairs:  16774555
     of these:    933650 ( 5.6%) have multiple alignments
                  100946 ( 0.6%) are discordant alignments
59.8% concordant pair alignment rate.