Frequencies for first 10,000 rows of indi_drug_seq variable in indi2012q4 dataset :

       Drug |
   sequence |
 number for |
identifying |
 a drug for |
     a Case |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      2,476       24.76       24.76
          2 |      1,306       13.06       37.82
          3 |      1,058       10.58       48.40
          4 |        813        8.13       56.53
          5 |        697        6.97       63.50
          6 |        591        5.91       69.41
          7 |        478        4.78       74.19
          8 |        397        3.97       78.16
          9 |        314        3.14       81.30
         10 |        243        2.43       83.73
         11 |        208        2.08       85.81
         12 |        187        1.87       87.68
         13 |        149        1.49       89.17
         14 |        118        1.18       90.35
         15 |        103        1.03       91.38
         16 |         88        0.88       92.26
         17 |         81        0.81       93.07
         18 |         78        0.78       93.85
         19 |         66        0.66       94.51
         20 |         56        0.56       95.07
         21 |         42        0.42       95.49
         22 |         37        0.37       95.86
         23 |         33        0.33       96.19
         24 |         27        0.27       96.46
         25 |         28        0.28       96.74
         26 |         22        0.22       96.96
         27 |         21        0.21       97.17
         28 |         22        0.22       97.39
         29 |         21        0.21       97.60
         30 |         15        0.15       97.75
         31 |         16        0.16       97.91
         32 |         14        0.14       98.05
         33 |         14        0.14       98.19
         34 |         10        0.10       98.29
         35 |         14        0.14       98.43
         36 |         12        0.12       98.55
         37 |         15        0.15       98.70
         38 |         13        0.13       98.83
         39 |         12        0.12       98.95
         40 |         10        0.10       99.05
         41 |          8        0.08       99.13
         42 |          8        0.08       99.21
         43 |          6        0.06       99.27
         44 |          7        0.07       99.34
         45 |          7        0.07       99.41
         46 |          6        0.06       99.47
         47 |          7        0.07       99.54
         48 |          4        0.04       99.58
         49 |          4        0.04       99.62
         50 |          4        0.04       99.66
         51 |          3        0.03       99.69
         52 |          4        0.04       99.73
         53 |          3        0.03       99.76
         54 |          2        0.02       99.78
         55 |          3        0.03       99.81
         56 |          4        0.04       99.85
         57 |          3        0.03       99.88
         58 |          1        0.01       99.89
         59 |          1        0.01       99.90
         60 |          2        0.02       99.92
         61 |          1        0.01       99.93
         62 |          1        0.01       99.94
         66 |          1        0.01       99.95
         67 |          1        0.01       99.96
         68 |          1        0.01       99.97
         69 |          2        0.02       99.99
         70 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 7 Apr 2017