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

         a9 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,158       61.58       61.58
          1 |         53        0.53       62.11
          2 |         84        0.84       62.95
          3 |         73        0.73       63.68
          4 |         79        0.79       64.47
          5 |         70        0.70       65.17
          6 |         92        0.92       66.09
          7 |         97        0.97       67.06
          8 |        115        1.15       68.21
          9 |        129        1.29       69.50
         10 |        120        1.20       70.70
         11 |        135        1.35       72.05
         12 |        155        1.55       73.60
         13 |        139        1.39       74.99
         14 |        170        1.70       76.69
         15 |        177        1.77       78.46
         16 |        172        1.72       80.18
         17 |        184        1.84       82.02
         18 |        160        1.60       83.62
         19 |        154        1.54       85.16
         20 |        142        1.42       86.58
         21 |        169        1.69       88.27
         22 |        157        1.57       89.84
         23 |        138        1.38       91.22
         24 |        115        1.15       92.37
         25 |        120        1.20       93.57
         26 |         98        0.98       94.55
         27 |         97        0.97       95.52
         28 |         68        0.68       96.20
         29 |         68        0.68       96.88
         30 |         50        0.50       97.38
         31 |         45        0.45       97.83
         32 |         45        0.45       98.28
         33 |         20        0.20       98.48
         34 |         31        0.31       98.79
         35 |         18        0.18       98.97
         36 |         26        0.26       99.23
         37 |         17        0.17       99.40
         38 |         11        0.11       99.51
         39 |          9        0.09       99.60
         40 |          5        0.05       99.65
         41 |          7        0.07       99.72
         42 |          6        0.06       99.78
         43 |          4        0.04       99.82
         44 |          1        0.01       99.83
         45 |          3        0.03       99.86
         46 |          1        0.01       99.87
         47 |          2        0.02       99.89
         48 |          1        0.01       99.90
         49 |          2        0.02       99.92
         50 |          2        0.02       99.94
         51 |          1        0.01       99.95
         52 |          2        0.02       99.97
         54 |          2        0.02       99.99
         61 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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