Frequencies for first 10,000 rows of pldel variable in natl1999 dataset :

   Place or |
Facility of |
      Birth |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      9,979       99.79       99.79
          4 |         14        0.14       99.93
          5 |          7        0.07      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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