Frequencies for first 10,000 rows of foll_seq variable in demo2008q2 dataset :

        The |
   sequence |
number of a |
   followup |
     report |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,576       95.76       95.76
          1 |        320        3.20       98.96
          2 |         58        0.58       99.54
          3 |         26        0.26       99.80
          4 |         14        0.14       99.94
          5 |          2        0.02       99.96
          7 |          3        0.03       99.99
          8 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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