Frequencies for first 10,000 rows of ld_anti variable in natlterr2011 dataset :

Antibiotics |
        RFP |
612=f_ld_an |
    tibio R |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      2,536       25.36       25.36
          N |      5,335       53.35       78.71
          U |      1,092       10.92       89.63
          Y |      1,037       10.37      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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