It would be a good idea to make sure that viewers understand that the points on the horizontal axis represent whole years, not the nights of December 31 to January 1. You could make the years smaller and put them directly below the points, instead of in the middle of a length of line between two points as they are now.
Katty, it is good that you practice your English, but I am afraid there were several mistakes in your version. But never give up!