Frequencies for d_4_hos_c7_55 variable in hosp_rollup2552_96_2007 dataset :

d_4_hos_c7_ |
         55 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |          1        0.02        0.02
         38 |          1        0.02        0.03
        184 |          1        0.02        0.05
        305 |          1        0.02        0.06
        586 |          1        0.02        0.08
        779 |          1        0.02        0.10
        808 |          1        0.02        0.11
       1057 |          1        0.02        0.13
       1093 |          1        0.02        0.14
       1523 |          1        0.02        0.16
       3136 |          1        0.02        0.18
       7782 |          1        0.02        0.19
       8710 |          1        0.02        0.21
       9735 |          1        0.02        0.22
      23583 |          1        0.02        0.24
      25426 |          1        0.02        0.26
     183189 |          1        0.02        0.27
     205760 |          1        0.02        0.29
     207591 |          1        0.02        0.30
          . |      6,215       99.70      100.00
------------+-----------------------------------
      Total |      6,234      100.00

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