Frequencies for d_4_hos_c7_52 variable in hosp_rollup2552_96_1999 dataset :

d_4_hos_c7_ |
         52 |      Freq.     Percent        Cum.
------------+-----------------------------------
          3 |          1        0.02        0.02
          5 |          1        0.02        0.03
          6 |          1        0.02        0.05
         12 |          1        0.02        0.07
         24 |          1        0.02        0.08
         62 |          1        0.02        0.10
         72 |          1        0.02        0.11
         76 |          1        0.02        0.13
        149 |          1        0.02        0.15
        156 |          1        0.02        0.16
        159 |          1        0.02        0.18
        177 |          1        0.02        0.20
        689 |          1        0.02        0.21
       1443 |          1        0.02        0.23
       1622 |          1        0.02        0.25
       2490 |          1        0.02        0.26
       3422 |          1        0.02        0.28
       4341 |          1        0.02        0.30
       6625 |          1        0.02        0.31
       6977 |          1        0.02        0.33
       9110 |          1        0.02        0.34
      16028 |          1        0.02        0.36
      36067 |          1        0.02        0.38
     290075 |          1        0.02        0.39
          . |      6,072       99.61      100.00
------------+-----------------------------------
      Total |      6,096      100.00

by Jean Roth , jroth@nber.org , 7 Sep 2018