Frequencies for first 10,000 rows of pateven variable in namcs2011 dataset :

 Do you see |
patients in |
 the office |
     during |
evenings or |
  weekends? |      Freq.     Percent        Cum.
------------+-----------------------------------
      Blank |         46        0.46        0.46
        Yes |      4,474       44.74       45.20
         No |      5,480       54.80      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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