Frequencies for first 10,000 rows of ubfacil variable in natl2003 dataset :

Birth Place |
        U;R |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      9,515       95.15       95.15
          2 |        269        2.69       97.84
          3 |         13        0.13       97.97
          4 |        193        1.93       99.90
          5 |          5        0.05       99.95
          9 |          5        0.05      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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