Frequencies for first 10,000 rows of a1 variable in miacc dataset :

         a1 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      5,924       59.24       59.24
          1 |         66        0.66       59.90
          2 |         82        0.82       60.72
          3 |         75        0.75       61.47
          4 |         95        0.95       62.42
          5 |         85        0.85       63.27
          6 |         93        0.93       64.20
          7 |        115        1.15       65.35
          8 |        116        1.16       66.51
          9 |        135        1.35       67.86
         10 |        151        1.51       69.37
         11 |        143        1.43       70.80
         12 |        165        1.65       72.45
         13 |        154        1.54       73.99
         14 |        185        1.85       75.84
         15 |        160        1.60       77.44
         16 |        209        2.09       79.53
         17 |        179        1.79       81.32
         18 |        198        1.98       83.30
         19 |        163        1.63       84.93
         20 |        162        1.62       86.55
         21 |        166        1.66       88.21
         22 |        160        1.60       89.81
         23 |        156        1.56       91.37
         24 |        122        1.22       92.59
         25 |        102        1.02       93.61
         26 |        114        1.14       94.75
         27 |         87        0.87       95.62
         28 |         80        0.80       96.42
         29 |         61        0.61       97.03
         30 |         64        0.64       97.67
         31 |         34        0.34       98.01
         32 |         36        0.36       98.37
         33 |         29        0.29       98.66
         34 |         25        0.25       98.91
         35 |         21        0.21       99.12
         36 |         22        0.22       99.34
         37 |         10        0.10       99.44
         38 |          8        0.08       99.52
         39 |         12        0.12       99.64
         40 |          5        0.05       99.69
         41 |          5        0.05       99.74
         42 |          3        0.03       99.77
         43 |          2        0.02       99.79
         44 |          7        0.07       99.86
         45 |          5        0.05       99.91
         46 |          1        0.01       99.92
         47 |          1        0.01       99.93
         48 |          1        0.01       99.94
         49 |          1        0.01       99.95
         50 |          2        0.02       99.97
         53 |          1        0.01       99.98
         59 |          1        0.01       99.99
         61 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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