Left reads:
          Input     :  20319811
           Mapped   :  19244805 (94.7% of input)
            of these:   1377781 ( 7.2%) have multiple alignments (42780 have >20)
Right reads:
          Input     :  20319811
           Mapped   :  18549085 (91.3% of input)
            of these:   1308408 ( 7.1%) have multiple alignments (42512 have >20)
93.0% overall read mapping rate.

Aligned pairs:  18232816
     of these:   1269259 ( 7.0%) have multiple alignments
                  270699 ( 1.5%) are discordant alignments
88.4% concordant pair alignment rate.