Left reads:
          Input     :  21498551
           Mapped   :  15167232 (70.6% of input)
            of these:    970732 ( 6.4%) have multiple alignments (8809 have >20)
Right reads:
          Input     :  21498551
           Mapped   :  14391429 (66.9% of input)
            of these:    925694 ( 6.4%) have multiple alignments (8812 have >20)
68.7% overall read mapping rate.

Aligned pairs:  13750378
     of these:    885398 ( 6.4%) have multiple alignments
                  179209 ( 1.3%) are discordant alignments
63.1% concordant pair alignment rate.