Frequencies for first 10,000 rows of ld_nvpr variable in natlterr2007 dataset :

 Non-Vertex |
Presentatio |
      n RFP |
610=f_ld_nv |
      rtx R |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      6,163       61.63       61.63
          N |      3,765       37.65       99.28
          U |          1        0.01       99.29
          Y |         71        0.71      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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