
This is an interesting poster because it included song+ series with ocean series. But anyhow. Song+ had over 580k orders according to this. According to link above, it had 478k orders, but that includes Song Pro series also. So, my guess is order book increased by about by close to 150k this year. If we add in pre-2022 orders, I think we are looking at 3 months of backlog at 70k a month.
Dolphin got over 360k orders with a little over 200k sales. Including some backlog from 2021. We are probably looking at 6 months of backlog even if they increase production rate to 30k a month! So, huge backlog here and they really need to work toward increasing production rate here.
Seal got over 110k orders with a little over 50k sales, so that's 60k orders backlog. That's 4 months of backlog. I think they will need to increase production rate here too.
Destroyer 05 got over 88k orders with 51k sales, so that's 37k order backlog. I mean that's a decent backlog, but they are really not producing a lot right now. So, I'm still not sure the point of the warship series.
Over all, the ocean series increased backlog by 350k this year. If dynasty series increased backlog by similar amount (let's just say for example Yuan added long backlogs for example). And if we add backlog from last year, we might be looking at close to 1 million in backlog which is about 4 months. Yuan probably has the longest backlog and is in dire need of additional capacity. Dolphin is very long too and need production to be raised. After that, Seal and Song+ are the next 2 families that are likely to see raised production.