The Japanese didn't have characters until they got them from China via Buddist texts.
You don't even know what Xang Xing, Xing Sheng, Zhuan Zhu, Hui Yi, or Zhi Shi actually means do you?
I also have NO idea where you got your 94% number from.
So tell us where you learned your Chinese.
I am Japanese and I guarantee my knowledge of Classical Chinese is greater than yours.