Frequencies for first 10,000 rows of eprolst variable in namcs2009 dataset :

  if yes, does |
  this include |
       patient |
problem lists? |      Freq.     Percent        Cum.
---------------+-----------------------------------
         blank |        546        5.46        5.46
       unknown |        315        3.15        8.61
not applicable |      1,822       18.22       26.83
           yes |      4,521       45.21       72.04
            no |      2,796       27.96      100.00
---------------+-----------------------------------
         Total |     10,000      100.00

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