Frequencies for first 10,000 rows of foll_seq variable in demo2008q4 dataset :

        The |
   sequence |
number of a |
   followup |
     report |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,499       94.99       94.99
          1 |        356        3.56       98.55
          2 |         83        0.83       99.38
          3 |         33        0.33       99.71
          4 |         17        0.17       99.88
          5 |          6        0.06       99.94
          6 |          4        0.04       99.98
          7 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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