Frequencies for first 10,000 rows of srgcl_icu_srvc_desc variable in pos2010 dataset :

 SRV: ICU - |
   SURGICAL |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,626       86.26       86.26
          0 |      1,247       12.47       98.73
          1 |        110        1.10       99.83
          2 |          7        0.07       99.90
          3 |         10        0.10      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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