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

         a9 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      5,962       59.62       59.62
          1 |         67        0.67       60.29
          2 |         82        0.82       61.11
          3 |         81        0.81       61.92
          4 |         92        0.92       62.84
          5 |         82        0.82       63.66
          6 |         95        0.95       64.61
          7 |        118        1.18       65.79
          8 |        118        1.18       66.97
          9 |        141        1.41       68.38
         10 |        138        1.38       69.76
         11 |        154        1.54       71.30
         12 |        171        1.71       73.01
         13 |        171        1.71       74.72
         14 |        177        1.77       76.49
         15 |        152        1.52       78.01
         16 |        189        1.89       79.90
         17 |        175        1.75       81.65
         18 |        190        1.90       83.55
         19 |        172        1.72       85.27
         20 |        166        1.66       86.93
         21 |        159        1.59       88.52
         22 |        153        1.53       90.05
         23 |        141        1.41       91.46
         24 |        123        1.23       92.69
         25 |        104        1.04       93.73
         26 |        116        1.16       94.89
         27 |         83        0.83       95.72
         28 |         74        0.74       96.46
         29 |         56        0.56       97.02
         30 |         56        0.56       97.58
         31 |         28        0.28       97.86
         32 |         32        0.32       98.18
         33 |         26        0.26       98.44
         34 |         31        0.31       98.75
         35 |         22        0.22       98.97
         36 |         23        0.23       99.20
         37 |         13        0.13       99.33
         38 |          8        0.08       99.41
         39 |         14        0.14       99.55
         40 |          9        0.09       99.64
         41 |          9        0.09       99.73
         42 |          5        0.05       99.78
         43 |          2        0.02       99.80
         44 |          5        0.05       99.85
         45 |          5        0.05       99.90
         46 |          2        0.02       99.92
         47 |          3        0.03       99.95
         49 |          2        0.02       99.97
         50 |          1        0.01       99.98
         53 |          1        0.01       99.99
         56 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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