Frequencies for first 10,000 rows of ld_augm variable in natlterr2015 dataset :

Augmentatio |
 n of Labor |
      Y Yes |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      1,078       10.78       10.78
          N |      7,685       76.85       87.63
          U |        102        1.02       88.65
          Y |      1,135       11.35      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 20 Oct 2016