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

           Services Provided: Radiology |
                Therapeutic Description |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
                                        |      8,614       86.14       86.14
                           NOT PROVIDED |        881        8.81       94.95
                      PROVIDED BY STAFF |        286        2.86       97.81
PROVIDED BY STAFF AND UNDER ARRANGEMENT |         63        0.63       98.44
             PROVIDED UNDER ARRANGEMENT |        156        1.56      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

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