Left reads:
          Input     :  18738169
           Mapped   :  15881275 (84.8% of input)
            of these:    627956 ( 4.0%) have multiple alignments (112867 have >20)
Right reads:
          Input     :  18738169
           Mapped   :  15449388 (82.4% of input)
            of these:    611187 ( 4.0%) have multiple alignments (112867 have >20)
83.6% overall read mapping rate.

Aligned pairs:  14900841
     of these:    585559 ( 3.9%) have multiple alignments
                  199152 ( 1.3%) are discordant alignments
78.5% concordant pair alignment rate.