Frequencies for first 10,000 rows of drugid20 variable in namcs2014 dataset :

Drug ID for |
 medication |
        #20 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,925       99.25       99.25
     a10785 |          1        0.01       99.26
     a11259 |          1        0.01       99.27
     a54655 |          1        0.01       99.28
     c00169 |          1        0.01       99.29
     d00011 |          1        0.01       99.30
     d00023 |          1        0.01       99.31
     d00048 |          1        0.01       99.32
     d00049 |          1        0.01       99.33
     d00070 |          1        0.01       99.34
     d00091 |          1        0.01       99.35
     d00108 |          1        0.01       99.36
     d00168 |          1        0.01       99.37
     d00170 |          3        0.03       99.40
     d00269 |          1        0.01       99.41
     d00321 |          1        0.01       99.42
     d00325 |          1        0.01       99.43
     d00348 |          1        0.01       99.44
     d00350 |          1        0.01       99.45
     d00352 |          1        0.01       99.46
     d00377 |          1        0.01       99.47
     d00405 |          1        0.01       99.48
     d00413 |          1        0.01       99.49
     d00426 |          1        0.01       99.50
     d00497 |          1        0.01       99.51
     d00558 |          1        0.01       99.52
     d00593 |          2        0.02       99.54
     d00620 |          1        0.01       99.55
     d00699 |          1        0.01       99.56
     d00726 |          2        0.02       99.58
     d00730 |          1        0.01       99.59
     d00732 |          1        0.01       99.60
     d00746 |          2        0.02       99.62
     d01164 |          1        0.01       99.63
     d01267 |          1        0.01       99.64
     d01387 |          1        0.01       99.65
     d03129 |          1        0.01       99.66
     d03140 |          4        0.04       99.70
     d03182 |          1        0.01       99.71
     d03206 |          1        0.01       99.72
     d03428 |          2        0.02       99.74
     d03536 |          1        0.01       99.75
     d03692 |          1        0.01       99.76
     d03807 |          1        0.01       99.77
     d03822 |          1        0.01       99.78
     d03826 |          1        0.01       99.79
     d03827 |          1        0.01       99.80
     d04017 |          1        0.01       99.81
     d04040 |          1        0.01       99.82
     d04057 |          1        0.01       99.83
     d04105 |          1        0.01       99.84
     d04113 |          2        0.02       99.86
     d04117 |          1        0.01       99.87
     d04215 |          1        0.01       99.88
     d04223 |          1        0.01       99.89
     d04283 |          1        0.01       99.90
     d04289 |          1        0.01       99.91
     d04332 |          1        0.01       99.92
     d04532 |          1        0.01       99.93
     d04697 |          1        0.01       99.94
     d04708 |          1        0.01       99.95
     d04829 |          1        0.01       99.96
     d04871 |          1        0.01       99.97
     d07347 |          1        0.01       99.98
     d07767 |          1        0.01       99.99
     n08105 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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