Left reads:
          Input     :  19730321
           Mapped   :  18647580 (94.5% of input)
            of these:   1245952 ( 6.7%) have multiple alignments (54391 have >20)
Right reads:
          Input     :  19730321
           Mapped   :  17477076 (88.6% of input)
            of these:   1146922 ( 6.6%) have multiple alignments (54079 have >20)
91.5% overall read mapping rate.

Aligned pairs:  17188897
     of these:   1122085 ( 6.5%) have multiple alignments
                  304564 ( 1.8%) are discordant alignments
85.6% concordant pair alignment rate.