Left reads:
          Input     :  20527915
           Mapped   :  14245045 (69.4% of input)
            of these:   1627931 (11.4%) have multiple alignments (20562 have >20)
Right reads:
          Input     :  20527915
           Mapped   :  13510582 (65.8% of input)
            of these:   1541952 (11.4%) have multiple alignments (20558 have >20)
67.6% overall read mapping rate.

Aligned pairs:  12873011
     of these:   1455511 (11.3%) have multiple alignments
                  187638 ( 1.5%) are discordant alignments
61.8% concordant pair alignment rate.