What made to the increase in steel consumption seen on the graph? Was it more people started mining steel that are sold outside of the country or still consumption increase when more people started to use computers or more. Building construction is needed to provide for the needs of people or fossil fuels that become popular depends on steel production.

It appears that the information provided is not sufficient to accurately determine the factors contributing to the increase in steel consumption seen on the graph. However, there are several factors that generally influence steel consumption:

1. Economic growth: Increased economic activity and construction projects can lead to greater demand for steel, particularly in the construction sector.

2. Infrastructure development: The construction of roads, bridges, railways, and other infrastructure projects require significant amounts of steel.

3. Industrial production: Industries such as automotive, machinery, and appliances heavily rely on steel for their manufacturing processes, contributing to increased steel consumption.

4. Urbanization: As more people move to urban areas, there is a need for more housing and infrastructure, which drives the demand for steel.

5. International trade: Exports of steel products to other countries can also contribute to increased consumption.

While the use of computers and popularity of fossil fuels can indirectly impact steel consumption through their influence on industrial production and economic growth, more information is needed to determine their specific impact on the consumption trend shown in the graph.