Left reads:
          Input     :  21126120
           Mapped   :  19891154 (94.2% of input)
            of these:   1729350 ( 8.7%) have multiple alignments (160334 have >20)
Right reads:
          Input     :  21126120
           Mapped   :  18865192 (89.3% of input)
            of these:   1625213 ( 8.6%) have multiple alignments (159958 have >20)
91.7% overall read mapping rate.

Aligned pairs:  18570065
     of these:   1591254 ( 8.6%) have multiple alignments
                  460360 ( 2.5%) are discordant alignments
85.7% concordant pair alignment rate.