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

          Services Provided: Anesthesia |
                            Description |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
                                        |      8,614       86.14       86.14
                           NOT PROVIDED |        460        4.60       90.74
                      PROVIDED BY STAFF |        369        3.69       94.43
PROVIDED BY STAFF AND UNDER ARRANGEMENT |         79        0.79       95.22
             PROVIDED UNDER ARRANGEMENT |        478        4.78      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 20 Apr 2019