And add those two 052Bs with 48 missiles (non VLS tho) each. People always forget about them.
Launch average will increase once the ships in the staggered phase launch quickly.. The keel laying average has been 3.25/ year. 26 in 8 years.. I have no reason to believe launch rate would be too different from this..3 x Type 052D launched in 2018
16 launches in 76 months
Rate is 1 in 4.75 months or average 2.5 per year
That's one way to save money on commissioning celebrations, just do two or more at the same time.
Now you know why PLA officers like mass weddings.