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

         a3 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      4,061       40.61       40.61
          1 |         48        0.48       41.09
          2 |         77        0.77       41.86
          3 |         86        0.86       42.72
          4 |         88        0.88       43.60
          5 |        102        1.02       44.62
          6 |        132        1.32       45.94
          7 |        118        1.18       47.12
          8 |        169        1.69       48.81
          9 |        188        1.88       50.69
         10 |        207        2.07       52.76
         11 |        221        2.21       54.97
         12 |        252        2.52       57.49
         13 |        251        2.51       60.00
         14 |        256        2.56       62.56
         15 |        251        2.51       65.07
         16 |        310        3.10       68.17
         17 |        322        3.22       71.39
         18 |        275        2.75       74.14
         19 |        254        2.54       76.68
         20 |        309        3.09       79.77
         21 |        248        2.48       82.25
         22 |        247        2.47       84.72
         23 |        237        2.37       87.09
         24 |        187        1.87       88.96
         25 |        172        1.72       90.68
         26 |        145        1.45       92.13
         27 |        137        1.37       93.50
         28 |        115        1.15       94.65
         29 |         95        0.95       95.60
         30 |         88        0.88       96.48
         31 |         70        0.70       97.18
         32 |         55        0.55       97.73
         33 |         42        0.42       98.15
         34 |         32        0.32       98.47
         35 |         27        0.27       98.74
         36 |         27        0.27       99.01
         37 |         16        0.16       99.17
         38 |         12        0.12       99.29
         39 |         13        0.13       99.42
         40 |          8        0.08       99.50
         41 |         11        0.11       99.61
         42 |          9        0.09       99.70
         43 |          5        0.05       99.75
         44 |          5        0.05       99.80
         45 |          1        0.01       99.81
         46 |          3        0.03       99.84
         47 |          1        0.01       99.85
         48 |          3        0.03       99.88
         49 |          1        0.01       99.89
         50 |          1        0.01       99.90
         56 |          1        0.01       99.91
         59 |          1        0.01       99.92
         61 |          1        0.01       99.93
         62 |          1        0.01       99.94
         63 |          2        0.02       99.96
         66 |          1        0.01       99.97
         69 |          1        0.01       99.98
         74 |          1        0.01       99.99
         75 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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