Frequencies for first 10,000 rows of prov2880 variable in posclia2003 dataset :

   prov2880 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,914       79.14       79.14
          1 |        612        6.12       85.26
          2 |      1,471       14.71       99.97
          5 |          3        0.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 26 Jan 2016