Frequencies for first 10,000 rows of prov5280 variable in pos2010 dataset :

   SRV: OTH |
        SOC |
 SRV-ONSITE |
  TO NONRES |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,641       76.41       76.41
          N |      2,344       23.44       99.85
          Y |         15        0.15      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 17 May 2017