The provided line graph demonstrates the carbon dioxide output in four distinct countries namely Singapore, China, Thailand and Vietnam between 1975 and 2010.
Overall, it is clear that while vietnam, Thailand and China represent constant growth, Singapore witnessed a fluctuating trend. Another strinking feature is that despite some remarkable fluctuations, at the end Singapore remained at the same level of CO2 emissions.
To begin with, in the initial years, Vietnam and Thailand showed visually stable indicators, which then gradually increased at above 2 and just over 4 tonnes, respectively. Similarly, in 1975 China started with just under 2 tonnes, before rising and remaining stable approximately at 3 tones between 1995 and 2000. However, this pattern then surged to about 5 tonnes in 2010.
In sriking contrast, beginning with approximately 11 tonnes, Singapore witnessed a sharp growth in 5 year period just over the 12. Therefore, in 1990 it peaked at above 14, before reaching it is own lowest indicator at about 7 tonnes in 2005. Despite a significant decline this figure represent a rappid growth at about 11, at the end of the period.