The line graph shows changes in the production of forest industry (timber, pulp, paper) in a European country, over a 20-year period between 1980 and 2000. The amount of used trees is given in million tonnes.
Overall, all of the three forest industry products increased, however the production of paper surged dramatically to the end of the analyzed period. The manufacture of pulp and timber rose as well, though they did not outnumber production of paper and took the second and third place respectively.
The first decade had remarkable differences between used products. It is clear that the growth in manufacturing of timber increased from five to ten million tonnes, which means it doubled significantly with the biggest rise occurring between 1980 and 1990. Moreover, production of pulp dropped rapidly from six to two million tonnes, whereas paper production grew gradually.
The period from 1990 and 2000 had considerable changes. Production of paper and timber jumped and plunged to opposite sides which caused the rise (twelve million tonnes) and drop (seven million tonnes) at the end of the analyzed period respectively. Despite the steady rise of pulp production, it went up from eight to ten million tonnes of trees.