Frequencies for first 10,000 rows of primcare variable in nhamcsopd1998 dataset :

are you the |
  patient's |
    primary |
       care |
 physician? |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      3,534       35.34       35.34
          2 |      5,489       54.89       90.23
          3 |        832        8.32       98.55
          4 |        145        1.45      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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