Frequencies for first 10,000 rows of prov3570 variable in pos1992 dataset :

      * 670 |
counter for |
 comp revis |
     survey |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,999       99.99       99.99
          1 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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