Frequencies for first 10,000 rows of rx18v1c2 variable in namcs2014 dataset :

  For RX18, |
 level 1 of |
MULTUM drug |
category #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,987       99.87       99.87
        040 |          3        0.03       99.90
        057 |          3        0.03       99.93
        081 |          3        0.03       99.96
        122 |          1        0.01       99.97
        218 |          2        0.02       99.99
        254 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 27 Mar 2017