Frequencies for first 10,000 rows of form6 variable in namcs2000 dataset :

         is |
 medication |
  #6 from a |
  formulary |
      list? |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         86        0.86        0.86
          1 |         74        0.74        1.60
          2 |        263        2.63        4.23
          3 |      9,577       95.77      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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