Frequencies for first 10,000 rows of mplbir variable in natlterr2000 dataset :

   Place of |
   Birth of |
     Mother |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |          2        0.02        0.02
          3 |          3        0.03        0.05
          5 |          8        0.08        0.13
          6 |          3        0.03        0.16
          7 |         51        0.51        0.67
          8 |          4        0.04        0.71
          9 |          1        0.01        0.72
         10 |         28        0.28        1.00
         11 |          7        0.07        1.07
         12 |          1        0.01        1.08
         14 |         98        0.98        2.06
         15 |          9        0.09        2.15
         17 |          3        0.03        2.18
         18 |          1        0.01        2.19
         19 |          3        0.03        2.22
         21 |          3        0.03        2.25
         22 |         62        0.62        2.87
         23 |          4        0.04        2.91
         26 |          1        0.01        2.92
         31 |        211        2.11        5.03
         32 |          2        0.02        5.05
         33 |        577        5.77       10.82
         34 |          4        0.04       10.86
         35 |          2        0.02       10.88
         36 |         19        0.19       11.07
         39 |         53        0.53       11.60
         41 |          1        0.01       11.61
         43 |          1        0.01       11.62
         44 |         13        0.13       11.75
         47 |          2        0.02       11.77
         48 |          1        0.01       11.78
         50 |          6        0.06       11.84
         52 |      8,403       84.03       95.87
         53 |          8        0.08       95.95
         55 |          2        0.02       95.97
         56 |         18        0.18       96.15
         57 |          7        0.07       96.22
         59 |        378        3.78      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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