Frequencies for first 10,000 rows of a3 variable in miacc dataset :

         a3 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      4,603       46.03       46.03
          1 |         75        0.75       46.78
          2 |         94        0.94       47.72
          3 |        103        1.03       48.75
          4 |         90        0.90       49.65
          5 |        116        1.16       50.81
          6 |        123        1.23       52.04
          7 |        121        1.21       53.25
          8 |        164        1.64       54.89
          9 |        170        1.70       56.59
         10 |        169        1.69       58.28
         11 |        221        2.21       60.49
         12 |        251        2.51       63.00
         13 |        248        2.48       65.48
         14 |        226        2.26       67.74
         15 |        256        2.56       70.30
         16 |        292        2.92       73.22
         17 |        251        2.51       75.73
         18 |        286        2.86       78.59
         19 |        235        2.35       80.94
         20 |        226        2.26       83.20
         21 |        235        2.35       85.55
         22 |        208        2.08       87.63
         23 |        172        1.72       89.35
         24 |        170        1.70       91.05
         25 |        131        1.31       92.36
         26 |        117        1.17       93.53
         27 |        108        1.08       94.61
         28 |         86        0.86       95.47
         29 |         73        0.73       96.20
         30 |         74        0.74       96.94
         31 |         73        0.73       97.67
         32 |         45        0.45       98.12
         33 |         40        0.40       98.52
         34 |         37        0.37       98.89
         35 |         24        0.24       99.13
         36 |         18        0.18       99.31
         37 |         16        0.16       99.47
         38 |         15        0.15       99.62
         39 |          8        0.08       99.70
         40 |          8        0.08       99.78
         41 |          6        0.06       99.84
         42 |          6        0.06       99.90
         43 |          3        0.03       99.93
         44 |          1        0.01       99.94
         45 |          2        0.02       99.96
         47 |          1        0.01       99.97
         50 |          1        0.01       99.98
         59 |          1        0.01       99.99
         62 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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