The chart illustrates the average carbon dioxide release per person in 4 
european
 countries Fix capitalization
European
on
 the Change preposition
over
40 year
 Use the right word
40-year
old 
period. Correct word choice
apply
Overall
, the number of emissions declined in the Linking Words
UK
 and Use synonyms
Sweden
, and increased in others. 
Use synonyms
While
 the number of emissions grew in three countries, it stayed the same in the Linking Words
UK
 from 1967 to approximately 1978. In these years, the Use synonyms
figuere
 in Correct your spelling
figure
Sweden
 peaked at around 10.5 metric Use synonyms
tones
, following a massive decline. After the observed period of roughly 11 years, Use the right word
tons
Sweden
 and the Use synonyms
UK
 started decreasing Use synonyms
its
 digitsFix the agreement mistake
their
,
 Punctuation problem
;
however
, Italy and Portugal saw a steady Linking Words
growh
. 
Correct your spelling
growth
While
 the Linking Words
UK
 was lessening Use synonyms
realy
 consistently, the 3 other nations Correct your spelling
really
expirienced
 a Correct your spelling
experienced
structure
 break in about 1987, where Replace the word
structural
Sweden
 started lowering Use synonyms
slower
, Italy increasing more calmly, and Portugal more sharply. 
Rephrase
more slowly
At the end
 of the Linking Words
40 year old
 period, Use the right word
40-year-old
Sweden
, despite the fact that it was the second leading nation, ended up at the same spot as Use synonyms
Portugal
 Punctuation problem
Portugal,
that
 used to be the lowest one.  The United Kingdom saved its leading position without yielding it at least once, Correct pronoun usage
which
while
 being close to it in around 1978. Linking Words
The 
Italy Correct article usage
apply
with
 its steady Punctuation problem
, with
growth
 became the second leading country in carbon dioxide emissions at Punctuation problem
growth,
approxiamately
 8 metric Correct your spelling
approximately
tones
,Use the right word
tons