Frequencies for first 10,000 rows of retypoff variable in namcs2009 dataset :

                 type of office setting |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
         private solo or group practice |      9,322       93.22       93.22
         freestanding clinic/urgicenter |        355        3.55       96.77
          non-federal government clinic |         78        0.78       97.55
health maint org (hmo)/oth prepaid prac |        214        2.14       99.69
                  faculty practice plan |         31        0.31      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

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