Frequencies for first 10,000 rows of pldel variable in natlterr1999 dataset :

   Place or |
Facility of |
     Birth  |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      9,983       99.83       99.83
          4 |         12        0.12       99.95
          5 |          5        0.05      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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