Frequencies for d_4_hos_c2_55 variable in hosp_rollup2552_96_2006 dataset :

d_4_hos_c2_ |
         55 |      Freq.     Percent        Cum.
------------+-----------------------------------
          9 |          1        0.02        0.02
         20 |          1        0.02        0.03
         83 |          1        0.02        0.05
        231 |          1        0.02        0.06
        278 |          1        0.02        0.08
        285 |          1        0.02        0.10
        849 |          1        0.02        0.11
       1121 |          1        0.02        0.13
       1336 |          1        0.02        0.15
       2588 |          1        0.02        0.16
       3960 |          1        0.02        0.18
       4332 |          1        0.02        0.19
       4365 |          1        0.02        0.21
       4717 |          1        0.02        0.23
       8233 |          1        0.02        0.24
       9233 |          1        0.02        0.26
      13925 |          1        0.02        0.27
      18258 |          1        0.02        0.29
      35248 |          1        0.02        0.31
      37695 |          1        0.02        0.32
     433281 |          1        0.02        0.34
     652063 |          1        0.02        0.36
          . |      6,170       99.64      100.00
------------+-----------------------------------
      Total |      6,192      100.00

by Jean Roth , jroth@nber.org , 21 Apr 2018