Left reads:
          Input     :  21309554
           Mapped   :  19735190 (92.6% of input)
            of these:   1728147 ( 8.8%) have multiple alignments (70951 have >20)
Right reads:
          Input     :  21309554
           Mapped   :  18094495 (84.9% of input)
            of these:   1545629 ( 8.5%) have multiple alignments (70469 have >20)
88.8% overall read mapping rate.

Aligned pairs:  17757590
     of these:   1501703 ( 8.5%) have multiple alignments
                  454962 ( 2.6%) are discordant alignments
81.2% concordant pair alignment rate.