Frequencies for first 10,000 rows of prov3325 variable in pos1995 dataset :

       srv: |
pharmacy-on |
   site-non |
  residents |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,523       75.23       75.23
          N |      2,429       24.29       99.52
          Y |         48        0.48      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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