Frequencies for first 10,000 rows of form2 variable in namcs1998 dataset :

         is |
 medication |
  #2 from a |
  formulary |
      list? |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        557        5.57        5.57
          1 |        717        7.17       12.74
          2 |      2,261       22.61       35.35
          3 |      6,465       64.65      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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