Frequencies for first 10,000 rows of pldel variable in natl1991 dataset :

   Place or |
Facility of |
      Birth |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      9,957       99.57       99.57
          3 |          1        0.01       99.58
          4 |         26        0.26       99.84
          5 |         16        0.16      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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