This chart is plotted among 3 countries Ethiopia, Papua New Guinea, and Uganda which have the least access to water for over 5 years. From this, we can infer that every year access to improved drinking water has been increasing.
This statement merely conveys the idea that when something is available in large quantities, it is taken for granted. Water serves as an excellent illustration of this. It is quite affordable while being one of the most significant resources and actually essential for life. That is due to how common it is. Water has a higher worth when it is in short supply because it is necessary for life.