The Bay Area number is driven by a couple of mega investments. One of them is the Stripe Series I round from March, where they raised over $6 billion. If you look at the EY dashboard, the Bay Area's performance in Q1 23 was 3x what it was the previous quarter. The massive increase was driven by two large investments, which is mentioned in the EY write up.
In the previous quarter, the Bay Area was just a little under 2x NYC, which is probably what it will settle back down to in after this quarter is done. Nashville's jump is also based on just one investment in solar panels or something. Expect it to slide back down next quarter.
EY VC dashboard