Frequencies for first 10,000 rows of rx3v1c3 variable in namcs2015 dataset :

   For RX3, |
 level 1 of |
MULTUM drug |
category #3 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,932       99.32       99.32
        040 |         19        0.19       99.51
        057 |         38        0.38       99.89
        097 |          3        0.03       99.92
        105 |          1        0.01       99.93
        113 |          7        0.07      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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