The report summarizes information about the proportion of 4 variety types of fuels that used from 1800 to 2000.
It is apparent from the graph that although usage of wood determined completely iin 2000, other types of fuels namely coal, oil, gas showed similar results at the end of the period.
Looking at the data in more detail, utilization of wood demonstrated the highest figure among other fuel types, at 100% in 1800. However, during the period, it saw a dramatic decline until 0% in 2000. Another striking change happened in usage of coal, sharing 0% at the beginning of the period but it rocketed and reached its peak at 65% in around 1900. Nevertheless, there was a gradual decrease in the following century.
Furthermore, it can be seen from the graph that people started to make use of oil and gas from 1900. They also experienced a sharp increase, and both stopped at approximately 30%.
