Frequencies for b_1_c21_72 variable in prds_hosp10_yr2014 dataset :

 b_1_c21_72 |      Freq.     Percent        Cum.
------------+-----------------------------------
      26608 |          1        0.02        0.02
      48002 |          1        0.02        0.03
     472228 |          1        0.02        0.05
     559334 |          1        0.02        0.06
     637891 |          1        0.02        0.08
          . |      6,243       99.92      100.00
------------+-----------------------------------
      Total |      6,248      100.00

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