Frequencies for first 10,000 rows of pldel variable in natl1993 dataset :

   Place or |
Facility of |
      Birth |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      9,977       99.77       99.77
          4 |         17        0.17       99.94
          5 |          6        0.06      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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