Frequencies for first 10,000 rows of a9 variable in miacc83 dataset :

         a9 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      4,095       40.95       40.95
          1 |         50        0.50       41.45
          2 |         63        0.63       42.08
          3 |         82        0.82       42.90
          4 |         95        0.95       43.85
          5 |         88        0.88       44.73
          6 |        115        1.15       45.88
          7 |        152        1.52       47.40
          8 |        160        1.60       49.00
          9 |        181        1.81       50.81
         10 |        229        2.29       53.10
         11 |        236        2.36       55.46
         12 |        219        2.19       57.65
         13 |        220        2.20       59.85
         14 |        277        2.77       62.62
         15 |        275        2.75       65.37
         16 |        322        3.22       68.59
         17 |        281        2.81       71.40
         18 |        305        3.05       74.45
         19 |        281        2.81       77.26
         20 |        263        2.63       79.89
         21 |        239        2.39       82.28
         22 |        241        2.41       84.69
         23 |        223        2.23       86.92
         24 |        200        2.00       88.92
         25 |        173        1.73       90.65
         26 |        154        1.54       92.19
         27 |        116        1.16       93.35
         28 |        122        1.22       94.57
         29 |         90        0.90       95.47
         30 |         65        0.65       96.12
         31 |         67        0.67       96.79
         32 |         54        0.54       97.33
         33 |         51        0.51       97.84
         34 |         39        0.39       98.23
         35 |         39        0.39       98.62
         36 |         25        0.25       98.87
         37 |         24        0.24       99.11
         38 |         16        0.16       99.27
         39 |         13        0.13       99.40
         40 |         11        0.11       99.51
         41 |         14        0.14       99.65
         42 |          4        0.04       99.69
         43 |          7        0.07       99.76
         44 |          5        0.05       99.81
         45 |          3        0.03       99.84
         46 |          2        0.02       99.86
         47 |          3        0.03       99.89
         48 |          1        0.01       99.90
         49 |          1        0.01       99.91
         50 |          2        0.02       99.93
         52 |          2        0.02       99.95
         53 |          2        0.02       99.97
         56 |          1        0.01       99.98
         57 |          1        0.01       99.99
         59 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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