Frequencies for first 10,000 rows of wtgain variable in natlterr2002 dataset :

Weight Gain |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        168        1.68        1.68
          1 |         10        0.10        1.78
          2 |         24        0.24        2.02
          3 |         26        0.26        2.28
          4 |         27        0.27        2.55
          5 |         56        0.56        3.11
          6 |         39        0.39        3.50
          7 |         50        0.50        4.00
          8 |         62        0.62        4.62
          9 |         41        0.41        5.03
         10 |        363        3.63        8.66
         11 |         73        0.73        9.39
         12 |        169        1.69       11.08
         13 |        130        1.30       12.38
         14 |        101        1.01       13.39
         15 |        449        4.49       17.88
         16 |        128        1.28       19.16
         17 |        101        1.01       20.17
         18 |        288        2.88       23.05
         19 |        120        1.20       24.25
         20 |      1,671       16.71       40.96
         21 |        173        1.73       42.69
         22 |        244        2.44       45.13
         23 |        178        1.78       46.91
         24 |        299        2.99       49.90
         25 |        964        9.64       59.54
         26 |        185        1.85       61.39
         27 |        145        1.45       62.84
         28 |        356        3.56       66.40
         29 |        147        1.47       67.87
         30 |        992        9.92       77.79
         31 |        123        1.23       79.02
         32 |        176        1.76       80.78
         33 |        123        1.23       82.01
         34 |        146        1.46       83.47
         35 |        251        2.51       85.98
         36 |        108        1.08       87.06
         37 |         79        0.79       87.85
         38 |         84        0.84       88.69
         39 |         52        0.52       89.21
         40 |        324        3.24       92.45
         41 |         55        0.55       93.00
         42 |         63        0.63       93.63
         43 |         61        0.61       94.24
         44 |         45        0.45       94.69
         45 |         71        0.71       95.40
         46 |         43        0.43       95.83
         47 |         27        0.27       96.10
         48 |         36        0.36       96.46
         49 |         23        0.23       96.69
         50 |         86        0.86       97.55
         51 |         20        0.20       97.75
         52 |         34        0.34       98.09
         53 |         13        0.13       98.22
         54 |         19        0.19       98.41
         55 |         13        0.13       98.54
         56 |         14        0.14       98.68
         57 |         10        0.10       98.78
         58 |          9        0.09       98.87
         59 |          7        0.07       98.94
         60 |         45        0.45       99.39
         61 |          5        0.05       99.44
         62 |          2        0.02       99.46
         63 |          2        0.02       99.48
         64 |          5        0.05       99.53
         65 |          7        0.07       99.60
         66 |          2        0.02       99.62
         68 |          3        0.03       99.65
         70 |          8        0.08       99.73
         71 |          4        0.04       99.77
         75 |          1        0.01       99.78
         76 |          2        0.02       99.80
         77 |          1        0.01       99.81
         78 |          2        0.02       99.83
         79 |          1        0.01       99.84
         80 |          3        0.03       99.87
         81 |          2        0.02       99.89
         99 |         11        0.11      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Dec 2015