Frequencies for first 10,000 rows of foll_seq variable in demo2006q4 dataset :

        The |
   sequence |
number of a |
   followup |
     report |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,832       88.32       88.32
          1 |        805        8.05       96.37
         10 |          1        0.01       96.38
         13 |          1        0.01       96.39
          2 |        223        2.23       98.62
         24 |          1        0.01       98.63
         25 |          1        0.01       98.64
          3 |         67        0.67       99.31
          4 |         31        0.31       99.62
          5 |         20        0.20       99.82
          6 |         11        0.11       99.93
          7 |          5        0.05       99.98
          8 |          1        0.01       99.99
          9 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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