Frequencies for first 10,000 rows of itran variable in natlterr2012 dataset :

     Infant |
Transferred |
RFP 571=? R |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      1,163       11.63       11.63
          N |      8,371       83.71       95.34
          U |        302        3.02       98.36
          Y |        164        1.64      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 5 May 2016