Frequencies for s5_c2_9 variable in prds_hosp10_yr2011 dataset :

    s5_c2_9 |      Freq.     Percent        Cum.
------------+-----------------------------------
       2.67 |          1        0.02        0.02
          9 |          1        0.02        0.03
         12 |          1        0.02        0.05
       13.5 |          1        0.02        0.07
         14 |          1        0.02        0.08
         15 |          1        0.02        0.10
      15.91 |          1        0.02        0.11
      16.72 |          1        0.02        0.13
         18 |          1        0.02        0.15
       19.5 |          1        0.02        0.16
       20.8 |          1        0.02        0.18
         30 |          2        0.03        0.21
          . |      6,137       99.79      100.00
------------+-----------------------------------
      Total |      6,150      100.00

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