Frequencies for first 10,000 rows of foll_seq variable in demo2009q2 dataset :

        The |
   sequence |
number of a |
   followup |
     report |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,685       96.85       96.85
          1 |        218        2.18       99.03
         10 |          2        0.02       99.05
         11 |          2        0.02       99.07
         14 |          1        0.01       99.08
         15 |          3        0.03       99.11
         18 |          1        0.01       99.12
          2 |         46        0.46       99.58
         24 |          1        0.01       99.59
          3 |         15        0.15       99.74
          4 |          9        0.09       99.83
          5 |          8        0.08       99.91
          6 |          4        0.04       99.95
          7 |          1        0.01       99.96
          8 |          4        0.04      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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