Frequencies for first 10,000 rows of form3 variable in namcs1998 dataset :

         is |
 medication |
  #3 from a |
  formulary |
      list? |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        324        3.24        3.24
          1 |        361        3.61        6.85
          2 |      1,247       12.47       19.32
          3 |      8,068       80.68      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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