Frequencies for first 10,000 rows of measureid variable in hqi_hosp_structural 

      Measure ID |      Freq.     Percent        Cum.
-----------------+-----------------------------------
    ACS_REGISTRY |         69        0.69        0.69
           OP_12 |      1,319       13.19       13.88
           OP_17 |      1,319       13.19       27.07
           OP_25 |      1,319       13.19       40.26
    SM_PART_CARD |      1,494       14.94       55.20
SM_PART_GEN_SURG |      1,493       14.93       70.13
   SM_PART_NURSE |      1,494       14.94       85.07
     SM_SS_CHECK |      1,493       14.93      100.00
-----------------+-----------------------------------
           Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 15 Nov 2016