Frequencies for first 10,000 rows of numform variable in namcs1998 dataset :

    total # of |
   medications |
from formulary |
          list |      Freq.     Percent        Cum.
---------------+-----------------------------------
       0 drugs |        820        8.20        8.20
        1 drug |        840        8.40       16.60
       2 drugs |        372        3.72       20.32
       3 drugs |        197        1.97       22.29
       4 drugs |         70        0.70       22.99
       5 drugs |         35        0.35       23.34
       6 drugs |         49        0.49       23.83
Not applicable |      3,499       34.99       58.82
       Unknown |      4,118       41.18      100.00
---------------+-----------------------------------
         Total |     10,000      100.00

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