Frequencies for first 10,000 rows of primcare variable in nhamcsopd2010 dataset :

    is this |
 clinic the |
  patient's |
    primary |
       care |
  provider? |      Freq.     Percent        Cum.
------------+-----------------------------------
      blank |        213        2.13        2.13
    unknown |        506        5.06        7.19
        yes |      3,267       32.67       39.86
         no |      6,014       60.14      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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