Frequencies for first 10,000 rows of opthlmc_srgy_srvc_desc variable in pos2012

  Services Provided: Ophthalmic Surgery |
                                 Descri |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
                                        |      8,606       86.06       86.06
                           NOT PROVIDED |      1,172       11.72       97.78
                      PROVIDED BY STAFF |        170        1.70       99.48
PROVIDED BY STAFF AND UNDER ARRANGEMENT |         23        0.23       99.71
             PROVIDED UNDER ARRANGEMENT |         29        0.29      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

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