China conducted one Joint Sword exercise in 2023:
https://www.axios.com/2023/04/08/china-taiwan-military-drills-tsai-mccarthy
It has conducted one exercise so far in 2024, titled "2024A" (indicating it possibly plans do to more):
https://www.understandingwar.org/backgrounder/china-taiwan-weekly-update-may-24-2024
Resolves to the number of additional Joint Sword operations that China conducts in 2024 (exclusive of 2024A).
Fine print:
Each exercise must explicitly be named something including "Joint Sword" in order to count.
Exercises count as separate and increment the counter if either:
They are officially titled differently, e.g. Joint Sword 2024B and 2024C
They are titled generically under the overall "Joint Sword" banner and there is at least 72 hours of non-exercise time between phases of active operations.
In the unlikely and unfortunate event that there are active non-exercise military operations titled "Joint Sword", that still counts, subject to the rules above.