Frequencies for d_4_hos_c2_55 variable in hosp_rollup2552_96_2005 dataset :

d_4_hos_c2_ |
         55 |      Freq.     Percent        Cum.
------------+-----------------------------------
          3 |          1        0.02        0.02
        157 |          1        0.02        0.03
        248 |          1        0.02        0.05
        354 |          1        0.02        0.06
        410 |          1        0.02        0.08
        568 |          1        0.02        0.10
        744 |          1        0.02        0.11
        935 |          1        0.02        0.13
        980 |          1        0.02        0.15
       1043 |          1        0.02        0.16
       1472 |          1        0.02        0.18
       1720 |          1        0.02        0.19
       4229 |          1        0.02        0.21
       4269 |          1        0.02        0.23
       9891 |          1        0.02        0.24
      10159 |          1        0.02        0.26
      17009 |          1        0.02        0.27
      23074 |          1        0.02        0.29
      30939 |          1        0.02        0.31
      38649 |          1        0.02        0.32
      60642 |          1        0.02        0.34
     192318 |          1        0.02        0.36
          . |      6,163       99.64      100.00
------------+-----------------------------------
      Total |      6,185      100.00

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