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

         a3 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      4,527       45.27       45.27
          1 |         49        0.49       45.76
          2 |         97        0.97       46.73
          3 |        120        1.20       47.93
          4 |        121        1.21       49.14
          5 |        130        1.30       50.44
          6 |        145        1.45       51.89
          7 |        135        1.35       53.24
          8 |        164        1.64       54.88
          9 |        195        1.95       56.83
         10 |        218        2.18       59.01
         11 |        228        2.28       61.29
         12 |        211        2.11       63.40
         13 |        279        2.79       66.19
         14 |        230        2.30       68.49
         15 |        263        2.63       71.12
         16 |        251        2.51       73.63
         17 |        249        2.49       76.12
         18 |        261        2.61       78.73
         19 |        228        2.28       81.01
         20 |        221        2.21       83.22
         21 |        212        2.12       85.34
         22 |        214        2.14       87.48
         23 |        174        1.74       89.22
         24 |        177        1.77       90.99
         25 |        141        1.41       92.40
         26 |        124        1.24       93.64
         27 |        117        1.17       94.81
         28 |        101        1.01       95.82
         29 |         85        0.85       96.67
         30 |         76        0.76       97.43
         31 |         39        0.39       97.82
         32 |         37        0.37       98.19
         33 |         37        0.37       98.56
         34 |         22        0.22       98.78
         35 |         22        0.22       99.00
         36 |         15        0.15       99.15
         37 |         15        0.15       99.30
         38 |         18        0.18       99.48
         39 |         13        0.13       99.61
         40 |          6        0.06       99.67
         41 |          5        0.05       99.72
         42 |          2        0.02       99.74
         43 |          7        0.07       99.81
         44 |          4        0.04       99.85
         45 |          2        0.02       99.87
         46 |          2        0.02       99.89
         47 |          4        0.04       99.93
         48 |          2        0.02       99.95
         49 |          2        0.02       99.97
         51 |          1        0.01       99.98
         57 |          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