Frequencies for first 10,000 rows of ilive variable in natlterr2013 dataset :

     Infant |
  Living at |
    Time of |
 Report RFP |
    571=? R |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      1,077       10.77       10.77
          N |         68        0.68       11.45
          U |        350        3.50       14.95
          Y |      8,505       85.05      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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