Frequencies for first 10,000 rows of prov3810 variable in posclia2000 dataset :

   prov3810 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |        316        3.16        3.16
          1 |      1,539       15.39       18.55
          2 |      4,587       45.87       64.42
          3 |        870        8.70       73.12
          4 |      2,037       20.37       93.49
          9 |        651        6.51      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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