Frequencies for first 10,000 rows of pt_onst_nrsdnt_sw variable in pos2001 dataset :

  srv: phys |
ther-onsite |
       -non |
   resident |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,345       73.45       73.45
          N |      2,510       25.10       98.55
          Y |        145        1.45      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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