Frequencies for first 10,000 rows of foll_seq variable in demo2010q4 dataset :

        The |
   sequence |
number of a |
   followup |
     report |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,800       98.00       98.00
         01 |         15        0.15       98.15
          1 |        125        1.25       99.40
          2 |         34        0.34       99.74
          3 |          9        0.09       99.83
          4 |          6        0.06       99.89
          5 |          5        0.05       99.94
          6 |          2        0.02       99.96
          7 |          1        0.01       99.97
          8 |          3        0.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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