Frequencies for first 10,000 rows of numform variable in namcs1997 dataset :

    total # of |
   medications |
from formulary |
          list |      Freq.     Percent        Cum.
---------------+-----------------------------------
       0 drugs |      1,570       15.70       15.70
        1 drug |      1,265       12.65       28.35
       2 drugs |        654        6.54       34.89
       3 drugs |        289        2.89       37.78
       4 drugs |         94        0.94       38.72
       5 drugs |         56        0.56       39.28
       6 drugs |         70        0.70       39.98
Not applicable |          2        0.02       40.00
       Unknown |      6,000       60.00      100.00
---------------+-----------------------------------
         Total |     10,000      100.00

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