Frequencies for first 10,000 rows of form5 variable in namcs1999 dataset :

         is |
 medication |
  #5 from a |
  formulary |
      list? |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        113        1.13        1.13
          1 |        181        1.81        2.94
          2 |        405        4.05        6.99
          3 |      9,301       93.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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