Left reads:
          Input     :  21801392
           Mapped   :  20349695 (93.3% of input)
            of these:   1900569 ( 9.3%) have multiple alignments (29135 have >20)
Right reads:
          Input     :  21801392
           Mapped   :  18743729 (86.0% of input)
            of these:   1742931 ( 9.3%) have multiple alignments (29123 have >20)
89.7% overall read mapping rate.

Aligned pairs:  18135226
     of these:   1688877 ( 9.3%) have multiple alignments
                   61644 ( 0.3%) are discordant alignments
82.9% concordant pair alignment rate.