Frequencies for first 10,000 rows of prov3810 variable in posclia2004 dataset :

   prov3810 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |        312        3.12        3.12
          1 |      1,187       11.87       14.99
          2 |      5,218       52.18       67.17
          3 |        773        7.73       74.90
          4 |      2,174       21.74       96.64
          9 |        336        3.36      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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