Frequencies for first 10,000 rows of rx7v1c2 variable in nhamcsed2010 dataset :

   For RX7, |
 level 1 of |
MULTUM drug |
category #2 |
     (broad |
     level) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,937       99.37       99.37
        001 |          9        0.09       99.46
        040 |          8        0.08       99.54
        057 |         24        0.24       99.78
        081 |          5        0.05       99.83
        105 |          1        0.01       99.84
        115 |          1        0.01       99.85
        122 |         12        0.12       99.97
        133 |          1        0.01       99.98
        242 |          1        0.01       99.99
        358 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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