Frequencies for first 10,000 rows of primcare variable in nhamcsopd1999 dataset :

are you the |
  patient's |
    primary |
       care |
 physician? |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      3,114       31.14       31.14
          2 |      5,775       57.75       88.89
          3 |        921        9.21       98.10
          4 |        190        1.90      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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