Frequencies for b_1_c23_64 variable in hosp_rollup2552_96_1997 dataset :

 b_1_c23_64 |      Freq.     Percent        Cum.
------------+-----------------------------------
        170 |          1        0.02        0.02
        332 |          1        0.02        0.03
        813 |          1        0.02        0.05
       2424 |          1        0.02        0.06
      18465 |          1        0.02        0.08
          . |      6,310       99.92      100.00
------------+-----------------------------------
      Total |      6,315      100.00

by Jean Roth , jroth@nber.org , 5 Sep 2018