Frequencies for first 10,000 rows of prov3810 variable in posclia1997 dataset :

   prov3810 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,924       19.24       19.24
          2 |      4,271       42.71       61.95
          3 |        940        9.40       71.35
          4 |      1,894       18.94       90.29
          9 |        971        9.71      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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