Frequencies for d4_sub2_c3_66 variable in hosp_rollup2552_96_2009 dataset :

d4_sub2_c3_ |
         66 |      Freq.     Percent        Cum.
------------+-----------------------------------
        225 |          1        0.02        0.02
        450 |          1        0.02        0.03
       9107 |          1        0.02        0.05
          . |      6,357       99.95      100.00
------------+-----------------------------------
      Total |      6,360      100.00

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