Frequencies for first 10,000 rows of ped_srvc_desc variable in pos2012 dataset 

           Services Provided: Pediatric |
                            Description |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
                                        |      8,606       86.06       86.06
                           NOT PROVIDED |        771        7.71       93.77
                      PROVIDED BY STAFF |        560        5.60       99.37
PROVIDED BY STAFF AND UNDER ARRANGEMENT |         28        0.28       99.65
             PROVIDED UNDER ARRANGEMENT |         35        0.35      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

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