Frequencies for first 10,000 rows of a2 variable in miacc dataset :

         a2 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,007       60.07       60.07
          1 |         58        0.58       60.65
          2 |         83        0.83       61.48
          3 |         60        0.60       62.08
          4 |         70        0.70       62.78
          5 |         65        0.65       63.43
          6 |         85        0.85       64.28
          7 |         97        0.97       65.25
          8 |        126        1.26       66.51
          9 |        122        1.22       67.73
         10 |        153        1.53       69.26
         11 |        151        1.51       70.77
         12 |        154        1.54       72.31
         13 |        172        1.72       74.03
         14 |        191        1.91       75.94
         15 |        167        1.67       77.61
         16 |        198        1.98       79.59
         17 |        164        1.64       81.23
         18 |        185        1.85       83.08
         19 |        180        1.80       84.88
         20 |        182        1.82       86.70
         21 |        151        1.51       88.21
         22 |        138        1.38       89.59
         23 |        115        1.15       90.74
         24 |        130        1.30       92.04
         25 |        113        1.13       93.17
         26 |         96        0.96       94.13
         27 |         87        0.87       95.00
         28 |         90        0.90       95.90
         29 |         72        0.72       96.62
         30 |         58        0.58       97.20
         31 |         41        0.41       97.61
         32 |         36        0.36       97.97
         33 |         31        0.31       98.28
         34 |         22        0.22       98.50
         35 |         30        0.30       98.80
         36 |         24        0.24       99.04
         37 |         12        0.12       99.16
         38 |         11        0.11       99.27
         39 |         12        0.12       99.39
         40 |         14        0.14       99.53
         41 |          8        0.08       99.61
         42 |          7        0.07       99.68
         43 |          4        0.04       99.72
         44 |          2        0.02       99.74
         45 |          3        0.03       99.77
         46 |          3        0.03       99.80
         47 |          3        0.03       99.83
         48 |          2        0.02       99.85
         50 |          2        0.02       99.87
         52 |          1        0.01       99.88
         53 |          4        0.04       99.92
         54 |          1        0.01       99.93
         55 |          2        0.02       99.95
         60 |          2        0.02       99.97
         64 |          2        0.02       99.99
         65 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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