Frequencies for first 10,000 rows of ip_gon variable in natl2014 dataset :

Gonorrhea Y |
        Yes |      Freq.     Percent        Cum.
------------+-----------------------------------
          N |      9,795       97.95       97.95
          U |        169        1.69       99.64
          Y |         36        0.36      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 15 Jun 2016