Frequencies for first 10,000 rows of rx8v1c2 variable in nhamcsed2011 dataset :

   For RX8, |
 level 1 of |
MULTUM drug |
category #2 |
     (broad |
     level) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,968       99.68       99.68
        001 |          2        0.02       99.70
        040 |          3        0.03       99.73
        057 |         12        0.12       99.85
        081 |          4        0.04       99.89
        087 |          1        0.01       99.90
        115 |          1        0.01       99.91
        122 |          8        0.08       99.99
        358 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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