Frequencies for first 10,000 rows of prescr8 variable in namcs2005 dataset :

prescriptio |
   n status |
   code for |
     med #8 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        401        4.01        4.01
          2 |         59        0.59        4.60
          3 |         46        0.46        5.06
          . |      9,494       94.94      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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