Frequencies for first 10,000 rows of crnry_care_unit_srvc_cd variable in pos2009 dataset :

 SRV: ICU - |
    CARDIAC |
(NON-SURGIC |
        AL) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,638       86.38       86.38
          0 |        795        7.95       94.33
          1 |        530        5.30       99.63
          2 |         27        0.27       99.90
          3 |         10        0.10      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 17 May 2017