Frequencies for first 10,000 rows of caseversion variable in demo2018q4 dataset :

     Safety |
     Report |
    Version |
     Number |      Freq.     Percent        Cum.
------------+-----------------------------------
          2 |      2,719       27.19       27.19
          3 |      2,484       24.84       52.03
          4 |      1,768       17.68       69.71
          5 |      1,135       11.35       81.06
          6 |        752        7.52       88.58
          7 |        484        4.84       93.42
          8 |        378        3.78       97.20
          9 |        280        2.80      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 7 Mar 2019