Frequencies for first 10,000 rows of prov5280 variable in pos1998 dataset :

   srv: oth |
        soc |
 srv-onsite |
  to nonres |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,417       74.17       74.17
          N |      2,558       25.58       99.75
          Y |         25        0.25      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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