Try Quests to earn cryptoBTC Transaction Metrics
Looking at miner fee and input/output values. Transaction fees abnormally jumped in 2017 before steadying in recent years. Miner fees has been reducing over time in BTC terms, but constant increase in price of BTC ensures miners are incentivized well. BTC saw its peak in 2011 as awareness signficantly jumped, based on avg output value, and has since steadied.