Frequencies for b_1_c21_72 variable in prds_hosp10_yr2017 dataset :

 Impl. Dev. |
 Charged to |
   Patients |
    B000001 |
      07200 |
      02100 |      Freq.     Percent        Cum.
------------+-----------------------------------
     536533 |          1        0.03        0.03
    1466124 |          1        0.03        0.05
          . |      3,747       99.95      100.00
------------+-----------------------------------
      Total |      3,749      100.00

by Jean Roth , jroth@nber.org , 26 Oct 2018