Frequencies for b_1_c21_106 variable in prds_hosp10_yr2010 dataset :

b_1_c21_106 |      Freq.     Percent        Cum.
------------+-----------------------------------
        471 |          1        0.04        0.04
       3189 |          1        0.04        0.09
     165158 |          1        0.04        0.13
          . |      2,320       99.87      100.00
------------+-----------------------------------
      Total |      2,323      100.00

by Jean Roth , jroth@nber.org , 24 Aug 2018