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

         a9 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      5,799       57.99       57.99
          1 |         54        0.54       58.53
          2 |         95        0.95       59.48
          3 |         71        0.71       60.19
          4 |         79        0.79       60.98
          5 |         84        0.84       61.82
          6 |         93        0.93       62.75
          7 |         98        0.98       63.73
          8 |        112        1.12       64.85
          9 |        124        1.24       66.09
         10 |        135        1.35       67.44
         11 |        166        1.66       69.10
         12 |        169        1.69       70.79
         13 |        192        1.92       72.71
         14 |        168        1.68       74.39
         15 |        189        1.89       76.28
         16 |        174        1.74       78.02
         17 |        199        1.99       80.01
         18 |        200        2.00       82.01
         19 |        174        1.74       83.75
         20 |        177        1.77       85.52
         21 |        190        1.90       87.42
         22 |        151        1.51       88.93
         23 |        139        1.39       90.32
         24 |        137        1.37       91.69
         25 |        120        1.20       92.89
         26 |        100        1.00       93.89
         27 |         93        0.93       94.82
         28 |         90        0.90       95.72
         29 |         76        0.76       96.48
         30 |         61        0.61       97.09
         31 |         39        0.39       97.48
         32 |         40        0.40       97.88
         33 |         37        0.37       98.25
         34 |         41        0.41       98.66
         35 |         26        0.26       98.92
         36 |         24        0.24       99.16
         37 |         11        0.11       99.27
         38 |         15        0.15       99.42
         39 |          9        0.09       99.51
         40 |          8        0.08       99.59
         41 |          6        0.06       99.65
         42 |          8        0.08       99.73
         43 |          7        0.07       99.80
         44 |          1        0.01       99.81
         45 |          6        0.06       99.87
         46 |          2        0.02       99.89
         48 |          2        0.02       99.91
         49 |          3        0.03       99.94
         50 |          2        0.02       99.96
         55 |          1        0.01       99.97
         56 |          1        0.01       99.98
         76 |          1        0.01       99.99
         79 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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