Frequencies for first 10,000 rows of form3 variable in namcs1999 dataset :

         is |
 medication |
  #3 from a |
  formulary |
      list? |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        301        3.01        3.01
          1 |        519        5.19        8.20
          2 |      1,157       11.57       19.77
          3 |      8,023       80.23      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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