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

          Services Provided: CT Scanner |
                            Description |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
                                        |      8,614       86.14       86.14
                           NOT PROVIDED |      1,013       10.13       96.27
                      PROVIDED BY STAFF |        284        2.84       99.11
PROVIDED BY STAFF AND UNDER ARRANGEMENT |         26        0.26       99.37
             PROVIDED UNDER ARRANGEMENT |         63        0.63      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

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