Frequencies for first 10,000 rows of retypoff variable in namcs1999 dataset :

  type of office setting for this visit |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
Freestanding priv, solo, or group offic |      8,801       88.01       88.01
         Freestanding clinic/urgicenter |        383        3.83       91.84
   Neighborhood hlth or mental hlth ctr |         93        0.93       92.77
              Privately operated clinic |        279        2.79       95.56
Local govt clinic (state, county, city) |         79        0.79       96.35
Health Maint Org (HMO)/oth prepaid prac |        365        3.65      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

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