How fast are the biggest bitcoin mining companies getting hashrate online?

Increasing their hashrate as quickly as possible is the top priority for the public bitcoin miners. Who has added hashrate the fastest so far this year?
Source: Monthly production updates (Core Scientific, Riot, Marathon, Bitfarms, Hut 8)

Core Scientific started the year as the biggest public miner by hashrate. After expanding their hashrate by 35% in the year's first four months, they can still boast the most hashrate of any public miner by a wide margin.

Even though Core is still the largest miner by hashrate, the fastest-grower is Riot, growing its hashrate by 52% so far in 2022, claiming the title as the second-largest miner by hashrate from Marathon.

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