The graph below shows average carbon dioxide emissions per person in the United Kingdom, Sweeden, Italy and Portugal between 1967 and 2007. Summarize the information by selecting and reporting the main features and make comparison where relevant.

The linear graph describes the average

amount

of carbon dioxide emitted by each person in four different countries in metric

tonnes

from 1967 to 2007.

Overall

, it can be seen that the highest

amount

of CO2

emissions

occurred in the United Kingdom at just above 10 metric

tonnes

in 1967,

while

the lowest

amount

of CO2

emissions

occurred in Portugal at under 2 metric

tonnes

in 1967.

In addition

, both the UK and Sweden had a downward trend,

whereas

Italy and Portugal had an upward trend over the period of four decades. In 1967, CO2

emissions

in the UK stood at above 10 metric

tonnes

per person.

However

, it remained constant from 1967 to 1977, but it began to decrease gradually, reaching a low of just above 8 metric

tonnes

per person from 1977 to 2007. By the same token, the

amount

of CO2 emitted by Swedish citizens stood at just over 8 metric

tonnes

,

then

it began to rise, reaching a peak of approximately 10 metric

tonnes

;

thereafter

, it started to suddenly plummet, reaching a low of under 6 metric

tonnes

from 1977 to 2007.

By contrast

, the average

amount

of CO2 emitted by Italian and Portuguese citizens stood at below 2 and over 4

tonnes

metric in 1967, respectively. The CO2

emissions

by the residents of these two countries began to slowly increase, reaching their peak of just under 6 and just below 8 metric

tonnes

from 1977 to 2007, respectively.