Frequencies for first 10,000 rows of primcare variable in namcs2014 dataset :

Are you the |
  patient's |
    primary |
       care |
 physician? |      Freq.     Percent        Cum.
------------+-----------------------------------
      Blank |         18        0.18        0.18
    Unknown |        374        3.74        3.92
        Yes |      3,858       38.58       42.50
         No |      5,750       57.50      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 27 Mar 2017