Frequencies for first 10,000 rows of srgcl_icu_srvc_cd variable in pos2018 dataset :

  Services: |
   Surgical |
   ICU Code |      Freq.     Percent        Cum.
------------+-----------------------------------
          . |      8,560       85.60       85.60
          0 |      1,193       11.93       97.53
          1 |        201        2.01       99.54
          2 |         10        0.10       99.64
          3 |         36        0.36      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 15 Feb 2019