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

         a9 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,038       60.38       60.38
          1 |         61        0.61       60.99
          2 |         85        0.85       61.84
          3 |         61        0.61       62.45
          4 |         76        0.76       63.21
          5 |         69        0.69       63.90
          6 |         84        0.84       64.74
          7 |         98        0.98       65.72
          8 |        130        1.30       67.02
          9 |        101        1.01       68.03
         10 |        164        1.64       69.67
         11 |        133        1.33       71.00
         12 |        159        1.59       72.59
         13 |        183        1.83       74.42
         14 |        194        1.94       76.36
         15 |        175        1.75       78.11
         16 |        182        1.82       79.93
         17 |        173        1.73       81.66
         18 |        182        1.82       83.48
         19 |        166        1.66       85.14
         20 |        176        1.76       86.90
         21 |        150        1.50       88.40
         22 |        130        1.30       89.70
         23 |        102        1.02       90.72
         24 |        147        1.47       92.19
         25 |        114        1.14       93.33
         26 |         96        0.96       94.29
         27 |         84        0.84       95.13
         28 |         98        0.98       96.11
         29 |         73        0.73       96.84
         30 |         56        0.56       97.40
         31 |         39        0.39       97.79
         32 |         40        0.40       98.19
         33 |         25        0.25       98.44
         34 |         15        0.15       98.59
         35 |         23        0.23       98.82
         36 |         25        0.25       99.07
         37 |         10        0.10       99.17
         38 |         16        0.16       99.33
         39 |         11        0.11       99.44
         40 |         16        0.16       99.60
         41 |          5        0.05       99.65
         42 |          7        0.07       99.72
         43 |          4        0.04       99.76
         44 |          4        0.04       99.80
         45 |          3        0.03       99.83
         46 |          3        0.03       99.86
         47 |          3        0.03       99.89
         48 |          4        0.04       99.93
         50 |          1        0.01       99.94
         51 |          1        0.01       99.95
         53 |          3        0.03       99.98
         54 |          1        0.01       99.99
         65 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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