The line chart displays the average 
of 
carbon dioxide discharge per person in four different countries (the UK, Sweden, Italy and Portugal) from 1967 to 2007.
Change preposition
apply
It is clear that
 British and Swedish started with Linking Words
top
 two Correct article usage
the top
position
, but Change to a plural noun
positions
a 
Correct article usage
apply
substaintail
 evidence indicated both of the countries declined Correct your spelling
substantial
the 
CO2 Correct article usage
apply
emissions
 by the end of the period. Yet, the remaining South Europe countries' figures grew steadily throughout the statistic.
Use synonyms
To begin
 with, the Linking Words
emissions
 in the UK stood at 10.5 metric tonnes in 1967, Use synonyms
subsequently
 a slightly fell to 9 through 40 years. Linking Words
Initially
, Swedish held 8.5 metic tones, followed by peaked over 10, which Linking Words
merely
 close to the UK trend in 1977. Add a missing verb
was merely
However
, the Linking Words
emissions
 dropped dramatically in the Use synonyms
last
 thirty years, eventually at 5 metric tonnes. 
Linking Words
On the other hand
, the chart shows Italy's carbon dioxide amount beginning Linking Words
with
 approximately 4.1.Change preposition
at
Additionally
, the Linking Words
emissions
 in Italy continuously reached Use synonyms
two
 highest Correct article usage
the two
number
 in 1977 and 1997, accounting for 6 and 7.5 respectively. Fix the agreement mistake
numbers
Finally
, Portugal rose rapidly to 5 metric tonnes in the first thirty years, but merely no Linking Words
increased
 in 2007.Replace the word
increase