Frequencies for first 10,000 rows of ld_anti variable in natlterr2010 dataset :

Antibiotics |
        RFP |
612=f_ld_an |
    tibio R |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      4,656       46.56       46.56
          N |      3,574       35.74       82.30
          U |        849        8.49       90.79
          Y |        921        9.21      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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