Frequencies for first 10,000 rows of foll_seq variable in demo2005q2 dataset :

        The |
   sequence |
number of a |
   followup |
     report |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,948       89.48       89.48
          1 |        840        8.40       97.88
         14 |          1        0.01       97.89
          2 |        133        1.33       99.22
          3 |         38        0.38       99.60
          4 |         22        0.22       99.82
          5 |          6        0.06       99.88
          6 |          5        0.05       99.93
          7 |          3        0.03       99.96
          8 |          3        0.03       99.99
          9 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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