Frequencies for first 10,000 rows of primcare variable in nhamcsopd2011 dataset :

    Is this |
 clinic the |
  patient’s |
    primary |
       care |
  provider? |      Freq.     Percent        Cum.
------------+-----------------------------------
      Blank |        141        1.41        1.41
    Unknown |        316        3.16        4.57
        Yes |      2,551       25.51       30.08
         No |      6,992       69.92      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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