Frequencies for s5_c4_6 variable in prds_hosp10_yr2010 dataset :

    s5_c4_6 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |          7        0.30        0.30
          2 |          3        0.13        0.43
          3 |          1        0.04        0.47
          4 |          1        0.04        0.52
          6 |          2        0.09        0.60
          7 |          1        0.04        0.65
          . |      2,308       99.35      100.00
------------+-----------------------------------
      Total |      2,323      100.00

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