Frequencies for first 10,000 rows of ANSTHSA_SRVC_CD variable in pos2011 dataset :

   Services |
  Provided: |
 Anesthesia |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,614       86.14       86.14
          0 |        460        4.60       90.74
          1 |        369        3.69       94.43
          2 |        478        4.78       99.21
          3 |         79        0.79      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 19 Apr 2019