Frequencies for s10_c1_4 variable in prds_hosp10_yr2013 dataset :

   s10_c1_4 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      3,173       50.78       50.78
          N |      2,235       35.77       86.56
          Y |        840       13.44      100.00
------------+-----------------------------------
      Total |      6,248      100.00

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