Frequencies for d_4_hos_c7_54 variable in hosp_rollup2552_96_2007 dataset :

d_4_hos_c7_ |
         54 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |          2        0.03        0.03
          2 |          2        0.03        0.06
          3 |          2        0.03        0.10
         13 |          1        0.02        0.11
         21 |          1        0.02        0.13
         29 |          1        0.02        0.14
         30 |          1        0.02        0.16
         49 |          1        0.02        0.18
         91 |          1        0.02        0.19
        170 |          1        0.02        0.21
        175 |          1        0.02        0.22
        229 |          1        0.02        0.24
        235 |          1        0.02        0.26
        339 |          1        0.02        0.27
        601 |          1        0.02        0.29
        875 |          1        0.02        0.30
        990 |          1        0.02        0.32
       1147 |          1        0.02        0.34
       1173 |          1        0.02        0.35
       1615 |          1        0.02        0.37
       2391 |          1        0.02        0.38
       9455 |          1        0.02        0.40
      16546 |          1        0.02        0.42
          . |      6,208       99.58      100.00
------------+-----------------------------------
      Total |      6,234      100.00

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