Frequencies for first 10,000 rows of prov2320 variable in pos2004 dataset :

      spec: |
 orthopedic |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,098       90.98       90.98
          N |        534        5.34       96.32
          Y |        368        3.68      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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