Here's the Tweet by Coinmetrics that kicked off the Twitter thread where this issue was shared:

For your convenience, this year in #Bitcoin mining!

All four of our quarterly specials:

Q1: https://coinmetrics.substack.com/p/state-of-the-network-issue-148 Q2: https://coinmetrics.substack.com/p/state-of-the-network-issue-161 Q3: https://coinmetrics.substack.com/p/state-of-the-network-issue-174 Q4: https://coinmetrics.substack.com/p/state-of-the-network-issue-185

https://twitter.com/coinmetrics/status/1602711905243652098 [Nitter]