Frequencies for first 10,000 rows of prov5280 variable in pos2007 dataset :

   srv: oth |
        soc |
 srv-onsite |
  to nonres |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,522       75.22       75.22
          N |      2,461       24.61       99.83
          Y |         17        0.17      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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