Frequencies for first 10,000 rows of mplbir variable in natl1982 dataset :

   Mother's |
   Place of |
      Birth |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      7,264       72.64       72.64
          2 |          6        0.06       72.70
          3 |          7        0.07       72.77
          4 |         36        0.36       73.13
          5 |         98        0.98       74.11
          6 |         14        0.14       74.25
          7 |         15        0.15       74.40
          8 |          2        0.02       74.42
          9 |          9        0.09       74.51
         10 |        335        3.35       77.86
         11 |        283        2.83       80.69
         12 |          6        0.06       80.75
         13 |          3        0.03       80.78
         14 |        127        1.27       82.05
         15 |         71        0.71       82.76
         16 |          9        0.09       82.85
         17 |         33        0.33       83.18
         18 |         56        0.56       83.74
         19 |         70        0.70       84.44
         20 |          8        0.08       84.52
         21 |         19        0.19       84.71
         22 |         27        0.27       84.98
         23 |        106        1.06       86.04
         24 |         11        0.11       86.15
         25 |        198        1.98       88.13
         26 |         41        0.41       88.54
         27 |          4        0.04       88.58
         28 |          7        0.07       88.65
         29 |          1        0.01       88.66
         30 |          5        0.05       88.71
         31 |         35        0.35       89.06
         32 |          9        0.09       89.15
         33 |         94        0.94       90.09
         34 |         65        0.65       90.74
         35 |          3        0.03       90.77
         36 |        104        1.04       91.81
         37 |         28        0.28       92.09
         38 |          3        0.03       92.12
         39 |         55        0.55       92.67
         40 |          5        0.05       92.72
         41 |         47        0.47       93.19
         42 |          4        0.04       93.23
         43 |        210        2.10       95.33
         44 |        113        1.13       96.46
         45 |          8        0.08       96.54
         46 |          3        0.03       96.57
         47 |         68        0.68       97.25
         48 |         18        0.18       97.43
         49 |         18        0.18       97.61
         50 |         18        0.18       97.79
         51 |          2        0.02       97.81
         52 |         10        0.10       97.91
         53 |          1        0.01       97.92
         54 |          4        0.04       97.96
         55 |         10        0.10       98.06
         56 |          3        0.03       98.09
         57 |          5        0.05       98.14
         59 |        184        1.84       99.98
         99 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 3 Jan 2016