Frequencies for d_4_hos_c6_54 variable in hosp_rollup2552_96_1996 dataset :

d_4_hos_c6_ |
         54 |      Freq.     Percent        Cum.
------------+-----------------------------------
      27506 |          1        0.02        0.02
     506890 |          1        0.02        0.03
          . |      6,019       99.97      100.00
------------+-----------------------------------
      Total |      6,021      100.00

by Jean Roth , jroth@nber.org , 3 Sep 2018