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

         a2 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      5,854       58.54       58.54
          1 |         65        0.65       59.19
          2 |         75        0.75       59.94
          3 |         93        0.93       60.87
          4 |         95        0.95       61.82
          5 |         92        0.92       62.74
          6 |         96        0.96       63.70
          7 |         98        0.98       64.68
          8 |        128        1.28       65.96
          9 |        130        1.30       67.26
         10 |        139        1.39       68.65
         11 |        145        1.45       70.10
         12 |        159        1.59       71.69
         13 |        172        1.72       73.41
         14 |        148        1.48       74.89
         15 |        205        2.05       76.94
         16 |        203        2.03       78.97
         17 |        163        1.63       80.60
         18 |        186        1.86       82.46
         19 |        187        1.87       84.33
         20 |        180        1.80       86.13
         21 |        173        1.73       87.86
         22 |        179        1.79       89.65
         23 |        157        1.57       91.22
         24 |        120        1.20       92.42
         25 |        116        1.16       93.58
         26 |        109        1.09       94.67
         27 |        103        1.03       95.70
         28 |         72        0.72       96.42
         29 |         62        0.62       97.04
         30 |         42        0.42       97.46
         31 |         43        0.43       97.89
         32 |         37        0.37       98.26
         33 |         30        0.30       98.56
         34 |         19        0.19       98.75
         35 |         19        0.19       98.94
         36 |         17        0.17       99.11
         37 |         14        0.14       99.25
         38 |         24        0.24       99.49
         39 |         12        0.12       99.61
         40 |          5        0.05       99.66
         41 |          6        0.06       99.72
         42 |          5        0.05       99.77
         43 |          2        0.02       99.79
         44 |          3        0.03       99.82
         45 |          6        0.06       99.88
         46 |          1        0.01       99.89
         47 |          2        0.02       99.91
         48 |          2        0.02       99.93
         49 |          1        0.01       99.94
         52 |          1        0.01       99.95
         54 |          1        0.01       99.96
         56 |          1        0.01       99.97
         57 |          1        0.01       99.98
         61 |          1        0.01       99.99
         89 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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