Frequencies for b_1_c22_72 variable in prds_hosp10_yr2011 dataset :

 b_1_c22_72 |      Freq.     Percent        Cum.
------------+-----------------------------------
        637 |          1        0.02        0.02
       8014 |          1        0.02        0.03
      75586 |          1        0.02        0.05
    2926526 |          1        0.02        0.07
          . |      6,146       99.93      100.00
------------+-----------------------------------
      Total |      6,150      100.00

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