Frequencies for first 10,000 rows of retypoff variable in namcs2008 dataset :

                 type of office setting |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
         private solo or group practice |      9,371       93.71       93.71
         freestanding clinic/urgicenter |        339        3.39       97.10
          non-federal government clinic |         37        0.37       97.47
                 family planning clinic |         21        0.21       97.68
health maint org (hmo)/oth prepaid prac |        232        2.32      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016