Frequencies for first 10,000 rows of a7 variable in miacc dataset :

         a7 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      4,789       47.89       47.89
          1 |         47        0.47       48.36
          2 |         98        0.98       49.34
          3 |         66        0.66       50.00
          4 |        100        1.00       51.00
          5 |        118        1.18       52.18
          6 |        119        1.19       53.37
          7 |        145        1.45       54.82
          8 |        135        1.35       56.17
          9 |        142        1.42       57.59
         10 |        153        1.53       59.12
         11 |        177        1.77       60.89
         12 |        238        2.38       63.27
         13 |        219        2.19       65.46
         14 |        243        2.43       67.89
         15 |        238        2.38       70.27
         16 |        249        2.49       72.76
         17 |        243        2.43       75.19
         18 |        251        2.51       77.70
         19 |        256        2.56       80.26
         20 |        219        2.19       82.45
         21 |        228        2.28       84.73
         22 |        235        2.35       87.08
         23 |        188        1.88       88.96
         24 |        186        1.86       90.82
         25 |        158        1.58       92.40
         26 |        142        1.42       93.82
         27 |         94        0.94       94.76
         28 |         86        0.86       95.62
         29 |         64        0.64       96.26
         30 |         60        0.60       96.86
         31 |         69        0.69       97.55
         32 |         50        0.50       98.05
         33 |         34        0.34       98.39
         34 |         34        0.34       98.73
         35 |         20        0.20       98.93
         36 |         18        0.18       99.11
         37 |         17        0.17       99.28
         38 |         20        0.20       99.48
         39 |         13        0.13       99.61
         40 |          7        0.07       99.68
         41 |          4        0.04       99.72
         42 |          7        0.07       99.79
         43 |          6        0.06       99.85
         44 |          2        0.02       99.87
         45 |          1        0.01       99.88
         46 |          1        0.01       99.89
         48 |          3        0.03       99.92
         49 |          1        0.01       99.93
         50 |          2        0.02       99.95
         53 |          2        0.02       99.97
         55 |          1        0.01       99.98
         62 |          1        0.01       99.99
         70 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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