Frequencies for first 10,000 rows of chow_cnt variable in pos2016 dataset :

 CHOW Count |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,439       64.39       64.39
          1 |      1,462       14.62       79.01
          2 |        943        9.43       88.44
          3 |        405        4.05       92.49
          4 |        313        3.13       95.62
          5 |        181        1.81       97.43
          6 |        112        1.12       98.55
          7 |         65        0.65       99.20
          8 |         35        0.35       99.55
          9 |         15        0.15       99.70
         10 |         14        0.14       99.84
         11 |          6        0.06       99.90
         12 |          4        0.04       99.94
         13 |          3        0.03       99.97
         14 |          3        0.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 10 Jan 2017