Frequencies for first 10,000 rows of anesthe variable in linkco1991us_num dataset :

 Anesthetic |
complicatio |
         ns |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |          3        0.03        0.03
          2 |      9,786       97.86       97.89
          8 |          4        0.04       97.93
          9 |        207        2.07      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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