The CIA has a budget for lying and cheating that is an order of magnitude larger than anything else other countries have. I always assume that they are doing more damage than what we know about.
I don't think you can, I expect different countries to have a wide variety of intelligence budgets as a percentage of military. But, if you did this anyway for the US and China, you would get 3.1x, closer to 2x than 10x.
You could use investment in companies that the CCP has investment in (and generating revenue for them; which also acts as taking revenue/fuel away from competing government types/ecosystems) as a proxy as well.
