Frequencies for b_1_c23_35 variable in hosp_rollup2552_96_2006 dataset :

 b_1_c23_35 |      Freq.     Percent        Cum.
------------+-----------------------------------
       1387 |          1        0.02        0.02
     518202 |          1        0.02        0.03
     577458 |          1        0.02        0.05
          . |      6,189       99.95      100.00
------------+-----------------------------------
      Total |      6,192      100.00

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