Left reads:
          Input     :  21862326
           Mapped   :  20464163 (93.6% of input)
            of these:   2055212 (10.0%) have multiple alignments (36350 have >20)
Right reads:
          Input     :  21862326
           Mapped   :  19138736 (87.5% of input)
            of these:   1913264 (10.0%) have multiple alignments (36348 have >20)
90.6% overall read mapping rate.

Aligned pairs:  18552940
     of these:   1857581 (10.0%) have multiple alignments
                   68463 ( 0.4%) are discordant alignments
84.5% concordant pair alignment rate.