Frequencies for first 10,000 rows of prov2345 variable in pos1998 dataset :

      spec: |
otolaryngol |
        ogy |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,416       94.16       94.16
          N |        347        3.47       97.63
          Y |        237        2.37      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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