Frequencies for s5_c2_9 variable in prds_hosp10_yr2013 dataset :

    s5_c2_9 |      Freq.     Percent        Cum.
------------+-----------------------------------
          9 |          1        0.02        0.02
         14 |          1        0.02        0.03
         15 |          1        0.02        0.05
       16.5 |          1        0.02        0.06
       17.3 |          1        0.02        0.08
       20.8 |          1        0.02        0.10
         23 |          1        0.02        0.11
         30 |          1        0.02        0.13
          . |      6,240       99.87      100.00
------------+-----------------------------------
      Total |      6,248      100.00

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