Frequencies for first 10,000 rows of gena2 variable in nhamcsed2001 dataset :

    generic |
  name code |
for adverse |
    drug #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,939       99.39       99.39
      50000 |         10        0.10       99.49
      50090 |         19        0.19       99.68
      50113 |          1        0.01       99.69
      50265 |          1        0.01       99.70
      51270 |          1        0.01       99.71
      51310 |          9        0.09       99.80
      51380 |          1        0.01       99.81
      51381 |          2        0.02       99.83
      52730 |          1        0.01       99.84
      53560 |          1        0.01       99.85
      53760 |          4        0.04       99.89
      54575 |          1        0.01       99.90
      56635 |          1        0.01       99.91
      57006 |          1        0.01       99.92
      57150 |          1        0.01       99.93
      59644 |          1        0.01       99.94
      59744 |          1        0.01       99.95
      70128 |          1        0.01       99.96
      70169 |          1        0.01       99.97
      92505 |          1        0.01       99.98
      92507 |          1        0.01       99.99
      92509 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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