Frequencies for first 10,000 rows of a4 variable in miacc85 dataset :

         a4 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      4,588       45.88       45.88
          1 |         70        0.70       46.58
          2 |        103        1.03       47.61
          3 |         97        0.97       48.58
          4 |         97        0.97       49.55
          5 |        132        1.32       50.87
          6 |        129        1.29       52.16
          7 |        139        1.39       53.55
          8 |        169        1.69       55.24
          9 |        171        1.71       56.95
         10 |        172        1.72       58.67
         11 |        228        2.28       60.95
         12 |        231        2.31       63.26
         13 |        225        2.25       65.51
         14 |        244        2.44       67.95
         15 |        256        2.56       70.51
         16 |        270        2.70       73.21
         17 |        262        2.62       75.83
         18 |        283        2.83       78.66
         19 |        238        2.38       81.04
         20 |        226        2.26       83.30
         21 |        223        2.23       85.53
         22 |        211        2.11       87.64
         23 |        169        1.69       89.33
         24 |        155        1.55       90.88
         25 |        131        1.31       92.19
         26 |        128        1.28       93.47
         27 |        105        1.05       94.52
         28 |         87        0.87       95.39
         29 |         73        0.73       96.12
         30 |         82        0.82       96.94
         31 |         71        0.71       97.65
         32 |         40        0.40       98.05
         33 |         41        0.41       98.46
         34 |         37        0.37       98.83
         35 |         23        0.23       99.06
         36 |         15        0.15       99.21
         37 |         18        0.18       99.39
         38 |         14        0.14       99.53
         39 |         11        0.11       99.64
         40 |          9        0.09       99.73
         41 |          6        0.06       99.79
         42 |          7        0.07       99.86
         43 |          5        0.05       99.91
         44 |          1        0.01       99.92
         45 |          2        0.02       99.94
         46 |          1        0.01       99.95
         47 |          1        0.01       99.96
         50 |          1        0.01       99.97
         59 |          1        0.01       99.98
         60 |          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