The line chart shows the USA workforce structure in 5 groups between 1930 and 2010, 
such
 as Linking Words
industrial
 sector, sales and office, Correct article usage
the industrial
and 
etc. The numbers are given in Correct word choice
apply
percent
 (%), briefly Farming, fishing and foresting started with the largest Change the spelling
per cent
employees
 Correct quantifier usage
number of employees
until
 1990 and dropped to the lowest Change preposition
in
employees
 in 2010.
Correct quantifier usage
number of employees
It is clear that
 old-economy jobs like Farming, fishing and foresting trended to Linking Words
decrese
 over the period Correct your spelling
decrease
with
 nearly 79% in 1930 to around 1% in 2010. Change preposition
from
Whereas
, new-economy jobs Linking Words
such
 as Industrial, Technical, Linking Words
Sale
 and office trended to increase constantly from 1970 to 2010 which was around 10 to Fix the agreement mistake
Sales
aproximately
 38, 35, and 20 respectively.
All in all, the old-economy works have a Correct your spelling
approximately
hugh
 impact Correct your spelling
huge
in
 Change preposition
on
Correct article usage
the labor
labor
 force market from the Change the spelling
labour
economy
 disruption Replace the word
economic
espeacially
 from 1970 to 1990.Correct your spelling
especially