196501-457662 FOI Environmental Protection

I am writing to request information regarding noise complaints associated with heat pumps in your area.
Could you please provide the following information for each year from 2015 to the most recent year with available data:
-    The total number of noise complaints associated with heat pumps broken down by heat pump type if possible (e.g. water source, air source, ground source, shared loop ground source).
-    The associated outcome of the noise complaints, if possible.

If it is not possible to complete the above request broken down by heat pump type, please omit this part of the request and instead provide the overall figures of all heat pumps. 
If it is not possible to receive information as far back as 2015, please start with the oldest year on record.
If it is not possible to complete all of the requests, please prioritise them in the order listed above.