Left reads:
          Input     :  57404449
           Mapped   :  21800267 (38.0% of input)
            of these:    804035 ( 3.7%) have multiple alignments (12191 have >20)
Right reads:
          Input     :  57404449
           Mapped   :  19310270 (33.6% of input)
            of these:    720606 ( 3.7%) have multiple alignments (12190 have >20)
35.8% overall read mapping rate.

Aligned pairs:  16784668
     of these:    478399 ( 2.9%) have multiple alignments
                  556981 ( 3.3%) are discordant alignments
28.3% concordant pair alignment rate.