Before revision:  The distorted presentation of data supporting the concept of the great divergence shows that most regions follow the gently-increasing trajectories describing the growth of income per capita but mathematical analysis of  data and even their undistorted presentations show that these trajectories are now increasing approximately vertically with time.
After revision:  The distorted presentation of data supporting the concept of the great divergence shows that economic growth is now developing along moderately-increasing trajectories but mathematical analysis of data and even their undistorted presentations show that these trajectories are now increasing approximately vertically with time.