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

         a9 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      5,966       59.66       59.66
          1 |         73        0.73       60.39
          2 |         90        0.90       61.29
          3 |         63        0.63       61.92
          4 |         69        0.69       62.61
          5 |         77        0.77       63.38
          6 |         77        0.77       64.15
          7 |         73        0.73       64.88
          8 |        109        1.09       65.97
          9 |        132        1.32       67.29
         10 |        121        1.21       68.50
         11 |        142        1.42       69.92
         12 |        146        1.46       71.38
         13 |        169        1.69       73.07
         14 |        154        1.54       74.61
         15 |        193        1.93       76.54
         16 |        178        1.78       78.32
         17 |        182        1.82       80.14
         18 |        181        1.81       81.95
         19 |        205        2.05       84.00
         20 |        171        1.71       85.71
         21 |        153        1.53       87.24
         22 |        168        1.68       88.92
         23 |        147        1.47       90.39
         24 |        145        1.45       91.84
         25 |        118        1.18       93.02
         26 |        104        1.04       94.06
         27 |         89        0.89       94.95
         28 |         77        0.77       95.72
         29 |         65        0.65       96.37
         30 |         67        0.67       97.04
         31 |         53        0.53       97.57
         32 |         26        0.26       97.83
         33 |         32        0.32       98.15
         34 |         34        0.34       98.49
         35 |         29        0.29       98.78
         36 |         24        0.24       99.02
         37 |         17        0.17       99.19
         38 |         13        0.13       99.32
         39 |         11        0.11       99.43
         40 |         11        0.11       99.54
         41 |          9        0.09       99.63
         42 |          9        0.09       99.72
         43 |          5        0.05       99.77
         44 |          6        0.06       99.83
         45 |          2        0.02       99.85
         46 |          2        0.02       99.87
         47 |          3        0.03       99.90
         50 |          1        0.01       99.91
         51 |          1        0.01       99.92
         54 |          2        0.02       99.94
         60 |          2        0.02       99.96
         61 |          1        0.01       99.97
         63 |          1        0.01       99.98
         65 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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