This case-sensitive code system http://hl7.org/fhir/measure-report-type defines the following codes:

CodeDisplayDefinition
individual IndividualAn individual report that provides information on the performance for a given measure with respect to a single subject.
subject-list Subject ListA subject list report that includes a listing of subjects that satisfied each population criteria in the measure.
summary SummaryA summary report that returns the number of members in each population criteria for the measure.
data-exchange Data ExchangeA data exchange report that contains data-of-interest for the measure (i.e. data that is needed to calculate the measure)
<status value="active"/><experimental value="false"/><date value="2021-01-05T10:01:24+11:00"/><publisher value="HL7 (FHIR Project)"/><contact><telecom><system value="url"/><value value="http://hl7.org/fhir"/></telecom><telecom><system value="email"/><value value="fhir@lists.hl7.org"/></telecom></contact><description value="The type of the measure report."/><jurisdiction><coding><system value="http://unstats.un.org/unsd/methods/m49/m49.htm"/><code value="001"/><display value="World"/></coding></jurisdiction><caseSensitive value="true"/><valueSet value="http://hl7.org/fhir/ValueSet/measure-report-type"/><content value="complete"/><concept><code value="individual"/><display value="Individual"/><definition value="An individual report that provides information on the performance for a given measure with respect to a single subject."/></concept><concept><code value="subject-list"/><display value="Subject List"/><definition value="A subject list report that includes a listing of subjects that satisfied each population criteria in the measure."/></concept><concept><code value="summary"/><display value="Summary"/><definition value="A summary report that returns the number of members in each population criteria for the measure."/></concept><concept><code value="data-exchange"/><display value="Data Exchange"/><definition value="A data exchange report that contains data-of-interest for the measure (i.e. data that is needed to calculate the measure)"/></concept></CodeSystem>