Frequencies for segmentid variable in snp2016 dataset :

 Segment ID |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,371       99.58       99.58
          1 |         11        0.13       99.71
          2 |         11        0.13       99.85
          3 |         13        0.15      100.00
------------+-----------------------------------
      Total |      8,406      100.00

by Jean Roth , jroth@nber.org , 19 Sep 2018