Frequencies for first 10,000 rows of primcare variable in namcs2005 dataset :

are you the |
  patient's |
    primary |
       care |
 physician? |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        130        1.30        1.30
          1 |      7,684       76.84       78.14
          2 |      1,905       19.05       97.19
          3 |        281        2.81      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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