Frequencies for first 10,000 rows of ld_nvpr variable in natlterr2010 dataset : Non-Vertex | Presentatio | n RFP | 610=f_ld_nv | rtx R | Freq. Percent Cum. ------------+----------------------------------- | 4,656 46.56 46.56 N | 4,411 44.11 90.67 U | 849 8.49 99.16 Y | 84 0.84 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 22 Dec 2015