Frequencies for s5_c2_9 variable in prds_hosp10_yr2015 dataset :

    s5_c2_9 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |          1        0.02        0.02
          9 |          2        0.03        0.05
       20.8 |          1        0.02        0.06
         22 |          1        0.02        0.08
         23 |          1        0.02        0.10
          . |      6,252       99.90      100.00
------------+-----------------------------------
      Total |      6,258      100.00

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