Frequencies for first 10,000 rows of ct_scan_srvc_desc variable in pos2013 data

          Services: CT Scan Description |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
                                        |      8,601       86.01       86.01
                           NOT PROVIDED |        920        9.20       95.21
                      PROVIDED BY STAFF |        366        3.66       98.87
PROVIDED BY STAFF AND UNDER ARRANGEMENT |         36        0.36       99.23
             PROVIDED UNDER ARRANGEMENT |         77        0.77      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

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