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

    INITIAL |
     IMPACT |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        804        8.04        8.04
          1 |        415        4.15       12.19
          2 |        117        1.17       13.36
          3 |        593        5.93       19.29
          4 |         60        0.60       19.89
          5 |        119        1.19       21.08
          6 |        477        4.77       25.85
          7 |        138        1.38       27.23
          8 |        115        1.15       28.38
          9 |        620        6.20       34.58
         10 |        192        1.92       36.50
         11 |        450        4.50       41.00
         12 |      4,477       44.77       85.77
         13 |         85        0.85       86.62
         14 |        147        1.47       88.09
         18 |         33        0.33       88.42
         99 |        536        5.36       93.78
          . |        622        6.22      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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