Frequencies for first 10,000 rows of rx12v1c1 variable in nhamcsed2015 dataset 

  For RX12, |
 level 1 of |
MULTUM drug |
category #1 |
     (broad |
     level) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,854       98.54       98.54
        001 |         10        0.10       98.64
        020 |          1        0.01       98.65
        040 |         21        0.21       98.86
        057 |         24        0.24       99.10
        081 |          5        0.05       99.15
        087 |         19        0.19       99.34
        097 |          1        0.01       99.35
        105 |          5        0.05       99.40
        115 |         19        0.19       99.59
        122 |          9        0.09       99.68
        133 |          8        0.08       99.76
        242 |          8        0.08       99.84
        254 |          2        0.02       99.86
        331 |          2        0.02       99.88
        358 |         11        0.11       99.99
        365 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 20 Nov 2017