Frequencies for first 10,000 rows of pdtry_srvc_onst_nrsdnt_sw variable in pos1999 dataset :

       srv: |
podiatry-on |
   site-non |
  residents |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,387       73.87       73.87
          N |      2,582       25.82       99.69
          Y |         31        0.31      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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