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

         a2 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      5,957       59.57       59.57
          1 |         60        0.60       60.17
          2 |         86        0.86       61.03
          3 |         80        0.80       61.83
          4 |         88        0.88       62.71
          5 |         84        0.84       63.55
          6 |         94        0.94       64.49
          7 |         99        0.99       65.48
          8 |        104        1.04       66.52
          9 |        131        1.31       67.83
         10 |        125        1.25       69.08
         11 |        119        1.19       70.27
         12 |        143        1.43       71.70
         13 |        134        1.34       73.04
         14 |        162        1.62       74.66
         15 |        174        1.74       76.40
         16 |        187        1.87       78.27
         17 |        172        1.72       79.99
         18 |        194        1.94       81.93
         19 |        189        1.89       83.82
         20 |        182        1.82       85.64
         21 |        195        1.95       87.59
         22 |        143        1.43       89.02
         23 |        141        1.41       90.43
         24 |        144        1.44       91.87
         25 |        123        1.23       93.10
         26 |         92        0.92       94.02
         27 |         88        0.88       94.90
         28 |        101        1.01       95.91
         29 |         70        0.70       96.61
         30 |         62        0.62       97.23
         31 |         58        0.58       97.81
         32 |         35        0.35       98.16
         33 |         31        0.31       98.47
         34 |         31        0.31       98.78
         35 |         22        0.22       99.00
         36 |         22        0.22       99.22
         37 |         12        0.12       99.34
         38 |          8        0.08       99.42
         39 |         13        0.13       99.55
         40 |          5        0.05       99.60
         41 |          3        0.03       99.63
         42 |          6        0.06       99.69
         43 |          5        0.05       99.74
         44 |          2        0.02       99.76
         45 |          5        0.05       99.81
         46 |          2        0.02       99.83
         47 |          6        0.06       99.89
         48 |          1        0.01       99.90
         51 |          2        0.02       99.92
         53 |          1        0.01       99.93
         54 |          1        0.01       99.94
         55 |          1        0.01       99.95
         58 |          1        0.01       99.96
         60 |          1        0.01       99.97
         61 |          1        0.01       99.98
         62 |          1        0.01       99.99
         66 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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