Frequencies for first 10,000 rows of prov4275 variable in posclia1998 dataset :

   prov4275 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,996       99.96       99.96
 03D0000001 |          1        0.01       99.97
 04D0917906 |          1        0.01       99.98
 25D0900271 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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