Frequencies for b_1_c0_6920 variable in hosp_rollup2552_96_1998 dataset :

b_1_c0_6920 |      Freq.     Percent        Cum.
------------+-----------------------------------
     173349 |          1        0.02        0.02
     748861 |          1        0.02        0.03
     972241 |          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