The line graph delineates global water use by various sectors from 1900 to 2000. The below table compares water consumption in Brazil and Congo in 2000.
Overall, water consumption followed an upward trend worldwide, throughout the period. However, agriculture sector had consistently the largest share of consumption amongst other sectors. Comparing two countries, Brazil water consumption per person was significantly higher than that of Congo.
The agriculture sector stood at roughly 500 km² in 1900, while this figure surged dramatically to approximately 3000 km² by the end of the period, widening the gap with other sectors, and remaining the largest contributor to water consumption. Although, industrial sector has nearly no share of consumption, its figure increased gradually, reaching about 1000 km² in 2000, remaining in second place. Similarly, while domestic use of water was nearly zero, it rose steadilly to around 300 km² in 2000, remaining the least consumer of water.
In terms of comparison between Brazil and Congo, Brazil with 176 million population had a share of 359 m² water use per person in 2000, while Congo with noticeably less population of 5.2 million, had also a notably less share of water use with 8 m², indicating significantly different consumption patterns between two countries. Coming to irrigated land, this figure was 26.500 km² for Brazil, while it was 100 km² for Congo, demonstrating a large gap between the two.