Frequencies for first 10,000 rows of a9 variable in miacc dataset :

         a9 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      5,089       50.89       50.89
          1 |         46        0.46       51.35
          2 |         74        0.74       52.09
          3 |         96        0.96       53.05
          4 |         86        0.86       53.91
          5 |         85        0.85       54.76
          6 |        104        1.04       55.80
          7 |        113        1.13       56.93
          8 |        117        1.17       58.10
          9 |        144        1.44       59.54
         10 |        175        1.75       61.29
         11 |        174        1.74       63.03
         12 |        180        1.80       64.83
         13 |        201        2.01       66.84
         14 |        234        2.34       69.18
         15 |        221        2.21       71.39
         16 |        258        2.58       73.97
         17 |        236        2.36       76.33
         18 |        233        2.33       78.66
         19 |        210        2.10       80.76
         20 |        242        2.42       83.18
         21 |        203        2.03       85.21
         22 |        193        1.93       87.14
         23 |        159        1.59       88.73
         24 |        163        1.63       90.36
         25 |        128        1.28       91.64
         26 |        158        1.58       93.22
         27 |         93        0.93       94.15
         28 |        102        1.02       95.17
         29 |         81        0.81       95.98
         30 |         81        0.81       96.79
         31 |         58        0.58       97.37
         32 |         42        0.42       97.79
         33 |         31        0.31       98.10
         34 |         28        0.28       98.38
         35 |         22        0.22       98.60
         36 |         26        0.26       98.86
         37 |         23        0.23       99.09
         38 |         16        0.16       99.25
         39 |         19        0.19       99.44
         40 |          6        0.06       99.50
         41 |         10        0.10       99.60
         42 |          2        0.02       99.62
         43 |          7        0.07       99.69
         44 |          4        0.04       99.73
         45 |          6        0.06       99.79
         46 |          4        0.04       99.83
         47 |          5        0.05       99.88
         48 |          4        0.04       99.92
         49 |          1        0.01       99.93
         50 |          2        0.02       99.95
         52 |          1        0.01       99.96
         54 |          1        0.01       99.97
         56 |          1        0.01       99.98
         71 |          1        0.01       99.99
         88 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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