Frequencies for s10_c1_4 variable in prds_hosp10_yr2012 dataset :

   s10_c1_4 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      3,194       51.29       51.29
          N |      2,157       34.64       85.93
          Y |        876       14.07      100.00
------------+-----------------------------------
      Total |      6,227      100.00

by Jean Roth , jroth@nber.org , 24 Aug 2018