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

Antibiotics |
        RFP |
612=f_ld_an |
    tibio R |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      1,163       11.63       11.63
          N |      7,321       73.21       84.84
          U |        349        3.49       88.33
          Y |      1,167       11.67      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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