The linechartgraph shows the amount of water expenditure on three branches: agriculture, industrial and domestic consumption over a period of 11 years over around the world. The table compares water consumption per capita based on population and irrigated areas between Brazil and Democractic Republic of Congo in 2000.
...."graph" is the appropriate word, not chart -------> graph shows / graphs show
Good introduction :)
It is clear that the water consumption was increasing over a period of shown, especially agriculture was by far the most rose compare to with other areas. Additionally, the amount of water used in each country affected on population and irrigated land.
.... this is your overview (I guess you follow the structure -1. Introduction 2. Overview 3. Details)
Here discuss the main trends of both graph and table!
Overall, this is very well written. :)