This procedure is not support by Xray, you will need to rely on external tools to obtain this information.
Requirements
Have access to "access" logs of Jira (specifically HTTP access logs) or whatever is in front of Jira (Nginx, LB, etc)
Have access to a filtering/log aggregation tool (ELK, splunk, etc). This is not a must-have but it'll make things easier.
Step by step
Depending on how long the logs are retained, we can filter for all requests with the pattern "/rest/raven/(1\.0|2\.0)/api/.*" over a certain period
If whatever tool being used has the capability, these can then be filtered down based on the endpoint being used to get an accurate estimate of the specific endpoint usage.
Limitations
The process above assumes that such monitoring tools are in place.
It is still possible to filter out this data but it'll be a much more manual process if such a tool is not in present.