Frequencies for s3_1_c5_9 variable in prds_hosp10_yr2017 dataset :

   Coronary |
  Care Unit |
    S300001 |
      00900 |
      00500 |      Freq.     Percent        Cum.
------------+-----------------------------------
       1861 |          1        0.03        0.03
      12701 |          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