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

The line graph illustrates the

number

of individual average carbon dioxide emissions in four countries, namely the UK, Sweden, Italy, and Portugal from 1967 to 2007.

Overall

, it is clearly seen that

while

Portugal and Italy saw an increase, the United Kingdom and Sweden decreased throughout the period,

although

the latter had a fluctuation at the start of the given period. Stood at just above 1 metric

tonnes

in 1967, Portugal jumped to approximately 3,5

tonnes

in 1987.

Moreover

, it skyrocketed to around 5,5 in 1997 and steadily rose until 2007.

Similarly

, Italy started the period at just above 4

tonnes

in 1967 and saw an increase to over 6

tonnes

in 1977, the

number

then

grew to just below 8

tonnes

in 1997 and plateaued until 2007.

Conversely

, the United Kingdom decreased from around 11

tonnes

in 1967 to 10

tonnes

in 1987.

In addition

, the

number

continued to drop to approximately 9,5 and 8,5

tonnes

in 1997 and 2007, respectively. Even though Sweden faced an increase from around 8,5

tonnes

in 1967 to just over 10

tonnes

in 1977, the

number

plummeted to approximately 7

tonnes

in 1987.

Furthermore

, the

number

steadily declined to just below 6

tonnes

in 2007.