Frequencies for chaincity variable in hcris2552_96_2000 dataset :

  chaincity |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      6,194       99.98       99.98
 CINCINNATI |          1        0.02      100.00
------------+-----------------------------------
      Total |      6,195      100.00

by Jean Roth , jroth@nber.org , 7 Sep 2018