Frequencies for first 10,000 rows of open_hrt_srgry_srvc_desc variable in pos20

     Services: Cardiac Thoracic Surgery |
                              Descripti |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
                                        |      8,601       86.01       86.01
                           NOT PROVIDED |      1,118       11.18       97.19
                      PROVIDED BY STAFF |        207        2.07       99.26
PROVIDED BY STAFF AND UNDER ARRANGEMENT |         28        0.28       99.54
             PROVIDED UNDER ARRANGEMENT |         46        0.46      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

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