Left reads:
          Input     :  18974404
           Mapped   :  16756800 (88.3% of input)
            of these:    763726 ( 4.6%) have multiple alignments (8587 have >20)
Right reads:
          Input     :  18974404
           Mapped   :  14942906 (78.8% of input)
            of these:    675831 ( 4.5%) have multiple alignments (8587 have >20)
83.5% overall read mapping rate.

Aligned pairs:  14125550
     of these:    632117 ( 4.5%) have multiple alignments
                   77696 ( 0.6%) are discordant alignments
74.0% concordant pair alignment rate.