Frequencies for first 10,000 rows of mplbir variable in natl1995 dataset :

   Place of |
   Birth of |
     Mother |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      6,855       68.55       68.55
          2 |         11        0.11       68.66
          3 |         15        0.15       68.81
          4 |         40        0.40       69.21
          5 |        121        1.21       70.42
          6 |         37        0.37       70.79
          7 |         18        0.18       70.97
          8 |          5        0.05       71.02
          9 |          7        0.07       71.09
         10 |        287        2.87       73.96
         11 |        336        3.36       77.32
         12 |         16        0.16       77.48
         13 |          1        0.01       77.49
         14 |        171        1.71       79.20
         15 |         93        0.93       80.13
         16 |         17        0.17       80.30
         17 |         18        0.18       80.48
         18 |         66        0.66       81.14
         19 |         87        0.87       82.01
         20 |          8        0.08       82.09
         21 |         27        0.27       82.36
         22 |         28        0.28       82.64
         23 |        121        1.21       83.85
         24 |         10        0.10       83.95
         25 |        185        1.85       85.80
         26 |         61        0.61       86.41
         27 |          1        0.01       86.42
         28 |          8        0.08       86.50
         29 |          3        0.03       86.53
         30 |          5        0.05       86.58
         31 |         66        0.66       87.24
         32 |         10        0.10       87.34
         33 |        113        1.13       88.47
         34 |         59        0.59       89.06
         35 |          5        0.05       89.11
         36 |        125        1.25       90.36
         37 |         35        0.35       90.71
         38 |          8        0.08       90.79
         39 |         61        0.61       91.40
         40 |          5        0.05       91.45
         41 |         48        0.48       91.93
         42 |          4        0.04       91.97
         43 |        182        1.82       93.79
         44 |        143        1.43       95.22
         45 |          7        0.07       95.29
         46 |          2        0.02       95.31
         47 |         66        0.66       95.97
         48 |         19        0.19       96.16
         49 |         31        0.31       96.47
         50 |         20        0.20       96.67
         51 |          4        0.04       96.71
         52 |          5        0.05       96.76
         53 |          2        0.02       96.78
         54 |          3        0.03       96.81
         55 |          8        0.08       96.89
         56 |          2        0.02       96.91
         57 |         40        0.40       97.31
         59 |        262        2.62       99.93
         99 |          7        0.07      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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