Frequencies for s5_c3_2 variable in prds_hosp10_yr2013 dataset :

    s5_c3_2 |      Freq.     Percent        Cum.
------------+-----------------------------------
          3 |          8        0.13        0.13
          4 |          1        0.02        0.14
          5 |          7        0.11        0.26
          6 |          5        0.08        0.34
          9 |          6        0.10        0.43
          . |      6,221       99.57      100.00
------------+-----------------------------------
      Total |      6,248      100.00

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