Frequencies for first 10,000 rows of pt_srvc_desc variable in pos2013 dataset :

                           Pt Srvc Desc |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
                                        |      5,888       58.88       58.88
                            COMBINATION |        327        3.27       62.15
                           NOT PROVIDED |        291        2.91       65.06
                           Not Provided |         75        0.75       65.81
                      PROVIDED BY STAFF |      1,377       13.77       79.58
PROVIDED BY STAFF AND UNDER ARRANGEMENT |         70        0.70       80.28
             PROVIDED UNDER ARRANGEMENT |      1,376       13.76       94.04
                               Provided |        596        5.96      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

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