Frequencies for first 10,000 rows of foll_seq variable in demo2006q3 dataset :

        The |
   sequence |
number of a |
   followup |
     report |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        888        8.88        8.88
          2 |        228        2.28       11.16
          3 |         74        0.74       11.90
          4 |         31        0.31       12.21
          5 |         12        0.12       12.33
          6 |          4        0.04       12.37
          7 |          1        0.01       12.38
          8 |          2        0.02       12.40
          9 |          3        0.03       12.43
         10 |          1        0.01       12.44
         22 |          2        0.02       12.46
          . |      8,754       87.54      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 18 Dec 2015