Frequencies for d_5_hos_c7_57 variable in hosp_rollup2552_96_1998 dataset :

d_5_hos_c7_ |
         57 |      Freq.     Percent        Cum.
------------+-----------------------------------
          2 |          1        0.02        0.02
          7 |          1        0.02        0.03
         19 |          1        0.02        0.05
         29 |          1        0.02        0.06
         52 |          1        0.02        0.08
       1125 |          1        0.02        0.10
          . |      6,218       99.90      100.00
------------+-----------------------------------
      Total |      6,224      100.00

by Jean Roth , jroth@nber.org , 6 Sep 2018