Frequencies for d_2_hos_c6_66 variable in hosp_rollup2552_96_1998 dataset :

d_2_hos_c6_ |
         66 |      Freq.     Percent        Cum.
------------+-----------------------------------
         39 |          1        0.02        0.02
        258 |          1        0.02        0.03
       2335 |          1        0.02        0.05
          . |      6,221       99.95      100.00
------------+-----------------------------------
      Total |      6,224      100.00

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