Frequencies for s3_1_c5_9 variable in prds_hosp10_yr2010 dataset :

  s3_1_c5_9 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |          1        0.04        0.04
          2 |          1        0.04        0.09
         31 |          1        0.04        0.13
         71 |          1        0.04        0.17
        118 |          2        0.09        0.26
       2660 |          1        0.04        0.30
          . |      2,316       99.70      100.00
------------+-----------------------------------
      Total |      2,323      100.00

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