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

         a3 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      4,553       45.53       45.53
          1 |         73        0.73       46.26
          2 |        100        1.00       47.26
          3 |        110        1.10       48.36
          4 |         90        0.90       49.26
          5 |        129        1.29       50.55
          6 |        152        1.52       52.07
          7 |        152        1.52       53.59
          8 |        144        1.44       55.03
          9 |        187        1.87       56.90
         10 |        146        1.46       58.36
         11 |        187        1.87       60.23
         12 |        201        2.01       62.24
         13 |        253        2.53       64.77
         14 |        228        2.28       67.05
         15 |        252        2.52       69.57
         16 |        274        2.74       72.31
         17 |        259        2.59       74.90
         18 |        263        2.63       77.53
         19 |        247        2.47       80.00
         20 |        226        2.26       82.26
         21 |        239        2.39       84.65
         22 |        239        2.39       87.04
         23 |        161        1.61       88.65
         24 |        158        1.58       90.23
         25 |        159        1.59       91.82
         26 |        133        1.33       93.15
         27 |        120        1.20       94.35
         28 |         97        0.97       95.32
         29 |         83        0.83       96.15
         30 |         66        0.66       96.81
         31 |         56        0.56       97.37
         32 |         54        0.54       97.91
         33 |         30        0.30       98.21
         34 |         42        0.42       98.63
         35 |         30        0.30       98.93
         36 |         22        0.22       99.15
         37 |         14        0.14       99.29
         38 |          7        0.07       99.36
         39 |         13        0.13       99.49
         40 |         10        0.10       99.59
         41 |          5        0.05       99.64
         42 |          5        0.05       99.69
         43 |          6        0.06       99.75
         44 |          4        0.04       99.79
         45 |          2        0.02       99.81
         46 |          4        0.04       99.85
         47 |          1        0.01       99.86
         48 |          2        0.02       99.88
         49 |          4        0.04       99.92
         50 |          1        0.01       99.93
         51 |          1        0.01       99.94
         52 |          1        0.01       99.95
         53 |          1        0.01       99.96
         57 |          2        0.02       99.98
         59 |          1        0.01       99.99
         63 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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