Block rewards is calculated by an equilibrium and paid from reserve pool from system. looking at block_rewards table from flipsidecrypto database we can see how much RUNE were distributed on a daily basis. also we can see how much liquidity fee was accumulated each day. this is how the look like in a weekly time period:

Now if we head to the swaps data, we can see how much fee was paid by swappers and the chart looks pretty much like orange bars from chart above. as they are both liquidity fees but one is in RUNE and one in USD so this pretty much explain difference in numbers.

• also i believe that spike is due to an error and should be neglected.

I also wanted to examine fees for each pool separately through time. there are serious difficulties that might be arising from database or me being unfamiliar with Thorchain mechanisms, but despite odd numbers it seems that proportions can be valid ( I will work on that and will update the analysis if any invalid source found):

since users pay fees both from RUNE and Asset, it not surprising that ETH pools have high value mostly. but again, this needs further investigation which i am currently working on it.