Frequencies for d_4_hos_c6_48 variable in hosp_rollup2552_96_1999 dataset :

d_4_hos_c6_ |
         48 |      Freq.     Percent        Cum.
------------+-----------------------------------
      28228 |          1        0.02        0.02
      28891 |          1        0.02        0.03
      69408 |          1        0.02        0.05
     106014 |          1        0.02        0.07
          . |      6,092       99.93      100.00
------------+-----------------------------------
      Total |      6,096      100.00

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