Many expect that, from rumors and production rates of the last few years, 70-100 aircraft will be added to the PLAAF this year. I would say that compares rather well with 61 F-35s.
Procurement nunber is not the same as delivery number for the US. If US indeed ends up procuring (paying for future jets) just 61 f35 (that's a DoD request number and congress can always add more) it doesnt mean that deliveries of previously contracted planes are not more numerous. I don't think 2022 numbers are available but prior to that US services were getting some 90 or so f35 per year.
61? Didn't LockMart mentioned about reaching an annual production rate of ~150 F-35s this year?
Japan, SK and Australia will have ~350 F-35s by 2035. The J-20 fleet size will surpass that number probably before the end of 2024. The balance of airpower in the West Pacific shifting in favor of China fast.
2035 is more than a decade away.
I'd make that F-35 number to 500, since it does look like Japan, South Korea and Australia are gearing up for war with China with ever increasing "defense" spendings. Coupled with the ever expanding presence of the US military in the IndoPac region, I believe the number of 5th-gen fighters that China has to face against by 2035 could go up to 1000-1200.
Even so, if Patch's information is accurate, i.e. Chengdu can reach 100 airframes this year and maintain similar production rate for the coming years at the very least, then China is perfectly capable of operating the same numbers of 5th-gen fighters as their Japanese, South Korean and Australian counterparts with the J-20 by 2025/2026, and these countries plus the Murican F-35s in the IndoPac region by 2031/2032.
Adding that if the J-35 and/or J-31 can enter service and serial production by 2025-2027 - Plus assuming that Shenyang is capable of building 50 J-35s and/or J-31s from 2027 onwards - Then China can move that 1000-1200 5th-gen fighters-goal forward to 2029/2030.
Though, we can only hope that China manages to catch up with the US in terms of introducing 6th-gen fighters into active service, which are expected in the first half of the 2030s.