Frequencies for first 10,000 rows of chow_cnt variable in posclia2016 dataset :

 CHOW Count |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,965       99.65       99.65
          1 |         15        0.15       99.80
          2 |         17        0.17       99.97
          3 |          1        0.01       99.98
          4 |          1        0.01       99.99
          5 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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