Frequencies for first 10,000 rows of impact1 variable in person dataset :

    INITIAL |
     IMPACT |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      1,292       12.92       12.92
          1 |        236        2.36       15.28
          2 |        212        2.12       17.40
          3 |        443        4.43       21.83
          4 |         96        0.96       22.79
          5 |         65        0.65       23.44
          6 |        455        4.55       27.99
          7 |        128        1.28       29.27
          8 |         68        0.68       29.95
          9 |        514        5.14       35.09
         10 |        118        1.18       36.27
         11 |        571        5.71       41.98
         12 |      4,199       41.99       83.97
         13 |         55        0.55       84.52
         14 |        397        3.97       88.49
         99 |        469        4.69       93.18
          . |        682        6.82      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 18 Apr 2016