Hello!
I cannot see the relevance?
In my part of the world, instrument hours are relevant for two purposes:
1. Qualifying as an instrument instructor (JAR-FCL 1.395 requires 800 hours flown under instrument
rules) and
2. Upgrade to captain (or gaining single pilot qualification) in the commercial environment (JAR-OPS / EU-OPS). The number of hours required depends on the type of operation and is stated in the operating manual of the company.
Once you have achieved your goal (either 1 or 2 or both) you can stop logging instrument hours, because nobody will ever ask you again about them.
Greetings, Max