Frequencies for first 10,000 rows of a2 variable in miacc dataset :

         a2 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      5,901       59.01       59.01
          1 |         41        0.41       59.42
          2 |         84        0.84       60.26
          3 |         63        0.63       60.89
          4 |         85        0.85       61.74
          5 |         85        0.85       62.59
          6 |         96        0.96       63.55
          7 |        105        1.05       64.60
          8 |        110        1.10       65.70
          9 |        111        1.11       66.81
         10 |        129        1.29       68.10
         11 |        148        1.48       69.58
         12 |        161        1.61       71.19
         13 |        145        1.45       72.64
         14 |        167        1.67       74.31
         15 |        180        1.80       76.11
         16 |        189        1.89       78.00
         17 |        190        1.90       79.90
         18 |        194        1.94       81.84
         19 |        184        1.84       83.68
         20 |        182        1.82       85.50
         21 |        151        1.51       87.01
         22 |        189        1.89       88.90
         23 |        147        1.47       90.37
         24 |        131        1.31       91.68
         25 |        132        1.32       93.00
         26 |        113        1.13       94.13
         27 |         90        0.90       95.03
         28 |         67        0.67       95.70
         29 |         80        0.80       96.50
         30 |         49        0.49       96.99
         31 |         35        0.35       97.34
         32 |         38        0.38       97.72
         33 |         37        0.37       98.09
         34 |         37        0.37       98.46
         35 |         29        0.29       98.75
         36 |         19        0.19       98.94
         37 |         20        0.20       99.14
         38 |         11        0.11       99.25
         39 |         16        0.16       99.41
         40 |          9        0.09       99.50
         41 |          8        0.08       99.58
         42 |          5        0.05       99.63
         43 |          6        0.06       99.69
         44 |          3        0.03       99.72
         45 |          5        0.05       99.77
         46 |          4        0.04       99.81
         47 |          4        0.04       99.85
         48 |          2        0.02       99.87
         49 |          2        0.02       99.89
         50 |          1        0.01       99.90
         51 |          2        0.02       99.92
         52 |          2        0.02       99.94
         55 |          2        0.02       99.96
         56 |          1        0.01       99.97
         63 |          1        0.01       99.98
         64 |          1        0.01       99.99
         65 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Oct 2016