Frequencies for first 10,000 rows of prov5280 variable in pos2003 dataset :

   srv: oth |
        soc |
 srv-onsite |
  to nonres |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,305       73.05       73.05
          N |      2,676       26.76       99.81
          Y |         19        0.19      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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