Frequencies for first 10,000 rows of primcare variable in nhamcsopd2001 dataset :

are you the |
  patient's |
    primary |
       care |
 physician? |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        266        2.66        2.66
          1 |      2,541       25.41       28.07
          2 |      6,167       61.67       89.74
          3 |      1,026       10.26      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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