Left reads:
          Input     :  20660600
           Mapped   :  19292058 (93.4% of input)
            of these:   2592082 (13.4%) have multiple alignments (58508 have >20)
Right reads:
          Input     :  20660600
           Mapped   :  17780473 (86.1% of input)
            of these:   2372741 (13.3%) have multiple alignments (57418 have >20)
89.7% overall read mapping rate.

Aligned pairs:  17202000
     of these:   2297433 (13.4%) have multiple alignments
                   76994 ( 0.4%) are discordant alignments
82.9% concordant pair alignment rate.