Left reads:
          Input     :  55448455
           Mapped   :  22429362 (40.5% of input)
            of these:    617377 ( 2.8%) have multiple alignments (5580 have >20)
Right reads:
          Input     :  55448455
           Mapped   :  20015629 (36.1% of input)
            of these:    561338 ( 2.8%) have multiple alignments (5580 have >20)
38.3% overall read mapping rate.

Aligned pairs:  17329110
     of these:    332964 ( 1.9%) have multiple alignments
                  620653 ( 3.6%) are discordant alignments
30.1% concordant pair alignment rate.