Frequencies for first 10,000 rows of prescr19 variable in namcs2015 dataset :

Prescriptio |
   n status |
   code for |
 medication |
        #19 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |         50        0.50        0.50
          2 |          3        0.03        0.53
          3 |          1        0.01        0.54
          5 |         15        0.15        0.69
          . |      9,931       99.31      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 25 Oct 2017