Monitoring and Statistical Data memory usage

So there's a lovely query that shows HANA memory usaged by componet.

SELECT

        host,

        component,

        sum(used_memory_size) used_mem_size

FROM PUBLIC.M_SERVICE_COMPONENT_MEMORY

group by host,

        component

ORDER BY sum(used_memory_size) desc;

Results show I have quite a bit more being used by "Monitoring & Statistical Data" than I do the actual column store.

How do I clear/shrink these areas?