Frequencies for first 10,000 rows of fda_dt variable in demo2004q1 dataset :

   Date FDA |
   received |
     report |      Freq.     Percent        Cum.
------------+-----------------------------------
   2.00e+07 |          1        0.01        0.01
   2.00e+07 |          1        0.01        0.02
   2.00e+07 |          1        0.01        0.03
   2.00e+07 |          1        0.01        0.04
   2.00e+07 |          1        0.01        0.05
   2.00e+07 |          1        0.01        0.06
   2.00e+07 |        703        7.03        7.09
   2.00e+07 |         56        0.56        7.65
   2.00e+07 |        304        3.04       10.69
   2.00e+07 |        490        4.90       15.59
   2.00e+07 |        409        4.09       19.68
   2.00e+07 |        442        4.42       24.10
   2.00e+07 |        566        5.66       29.76
   2.00e+07 |          2        0.02       29.78
   2.00e+07 |          1        0.01       29.79
   2.00e+07 |        491        4.91       34.70
   2.00e+07 |        572        5.72       40.42
   2.00e+07 |        749        7.49       47.91
   2.00e+07 |        543        5.43       53.34
   2.00e+07 |        573        5.73       59.07
   2.00e+07 |          2        0.02       59.09
   2.00e+07 |          1        0.01       59.10
   2.00e+07 |        111        1.11       60.21
   2.00e+07 |        930        9.30       69.51
   2.00e+07 |      1,153       11.53       81.04
   2.00e+07 |        556        5.56       86.60
   2.00e+07 |        453        4.53       91.13
   2.00e+07 |          3        0.03       91.16
   2.00e+07 |        581        5.81       96.97
   2.00e+07 |        242        2.42       99.39
   2.00e+07 |         61        0.61      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 18 Dec 2015