Left reads:
          Input     :  21488758
           Mapped   :  17561144 (81.7% of input)
            of these:    850088 ( 4.8%) have multiple alignments (14664 have >20)
Right reads:
          Input     :  21488758
           Mapped   :  18125746 (84.3% of input)
            of these:    879931 ( 4.9%) have multiple alignments (14667 have >20)
83.0% overall read mapping rate.

Aligned pairs:  16139148
     of these:    751194 ( 4.7%) have multiple alignments
                   90606 ( 0.6%) are discordant alignments
74.7% concordant pair alignment rate.