Both graphs Illustrate fluctuations related to the steel 
indusrty
 in Correct your spelling
industry
UK
 covering the period Correct article usage
the UK
of
 1970 till 2000. The Change preposition
from
line
 graph highlights the value alterations Use synonyms
while
 the Linking Words
line
 chart demonstrates the employment status 
Use synonyms
Overall
, regarding the value graph, both the total demand and the import lines have faced Linking Words
clear
 Correct article usage
a clear
declination
, Replace the word
decline
On the 
Linking Words
contrary
 the UK production Add the comma(s)
contrary,
line
 has increased quite a lot over the 30 years.
Moving on to the chart, Use synonyms
It is clear that
 the employment status has drastically declined Linking Words
through out
 Correct your spelling
throughout
this
 period.
Taking a closer look Linking Words
into
 Change preposition
at
value
 graph, the production Correct article usage
the value
line
 used to be the Use synonyms
least
 in 1970, Correct word choice
lowest
while
 the import and demand lines were too high in Linking Words
values
 getting approximately 160K and 2 million.
In 1980 the production Fix the agreement mistake
value
line
 had a slight Use synonyms
raise
, reaching 50K.Correct your spelling
rise