Frequencies for first 10,000 rows of prov5220 variable in pos1997 dataset :

  srv: ther |
        rec |
spec-onsite |
    -nonres |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,405       74.05       74.05
          N |      2,582       25.82       99.87
          Y |         13        0.13      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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