For literary every occasion people say the same exact thing! They look for an excuse to hope for a drop and they have never happened for any of those occasions, sometimes they happen for different reasons which coincide with those occasions but never because of them.
From "it's the weekend" silly reasons all the way to "end of the year" reasons, none of them have ever caused a drop. For example the latest one was because of the 2021 new year and like every year people started saying "dump because of Christmas" and we saw that price actually went up during that time!
Here's another Chinese New Year Bitcoin price table from different source.
Year:2020
Pre CNY High:$8,500
CNY Low:$8,240
Price Drop:17%
Year:2019
Pre CNY High:$4,041
CNY Low:$3,350
Price Drop:50%
You got all your percentages wrong. The first one is only 3% and the second is 17% and the third is 50% (based on your own reported prices.
Not to mention that your prices are all out of context.
For example in the case of Chinese new year 2020 which was on January 25, price was continually rising from January 2 ($6903) for 17 days until January 19 ($9188) then the correction of that rise starts and price slowly goes down a little to $8252 on January 25. You can't possibly say this is because of Chinese new year and ignore the correction. The same exact thing happened in February or even last month or in November last year.