Frequencies for d4_hos_c3_66 variable in hosp_rollup2552_96_2004 dataset :

d4_hos_c3_6 |
          6 |      Freq.     Percent        Cum.
------------+-----------------------------------
       1357 |          1        0.02        0.02
       2133 |          1        0.02        0.03
       8486 |          1        0.02        0.05
          . |      6,200       99.95      100.00
------------+-----------------------------------
      Total |      6,203      100.00

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