It is predicted that after 
few
 years the number of aged individuals in some nations Correct article usage
a few
would
 exceed the total of teenagers living in those nations. I believe Wrong verb form
will
that is
 a negative trend Linking Words
beacuse
 it adds Correct your spelling
because
extra
 burden to Correct article usage
an extra
government
 and there would be no Add an article
the government
economical
 growth in these countries. 
Replace the word
economic
To begin
 with, in many states Linking Words
the 
health care is handled by the government. Correct article usage
apply
Generally
 people Add a comma
Generally,
are 
often Unnecessary verb
apply
gets
 sick if they are getting old. Correct subject-verb agreement
get
Therefore
, the count of Linking Words
elder
 population is directly Add an article
the elder
propotional
 to the Correct your spelling
proportional
amout
 of funds Correct your spelling
amount
spend
 by the states. Change the form of the verb
spent
Additionally
, the workers Linking Words
demands
 high wages for moving to these cities. Change the verb form
demand
For example
, Linking Words
few
 cities in Canada are occupied Correct article usage
a few
with
 aged Change preposition
by
couple
, Fix the agreement mistake
couples
Canada
 is investing a lot of funds to build care houses in these areas. Correct word choice
and Canada
Dispite
 of funds the workers are not willing to relocate to Correct your spelling
Despite
these kind
 of areas Change the determiner
this kind
these kinds
beacuse
 of poor development. 
Correct your spelling
because
Furthermore
, Linking Words
Correct article usage
a nations
nations
 economy depends on the average revenue of the Change noun form
nation's
citizines
. Suppose there are only Correct your spelling
citizens
few
 teenagers in a city which leads to Change the article
a few
work force
 imbalance. The Correct your spelling
a workforce
numbers
 of manforce jobs in the market would rise and finding perfect workers for these tasks would become tough. Fix the agreement mistake
number
Thus
, Linking Words
this
 scenario impacts the GDP of the country. Linking Words
For example
, Canada needs more workforce than the current population inside the country. So it accepts Linking Words
higher
 number of Add an article
a higher
temperory
 residents to balance the economy. 
In conclusion, Correct your spelling
temporary
to
 my way of thinking if the count of retired persons Change preposition
in
are
 higher than the count of Change the verb form
is
current
 generation is not good for Add an article
the current
Correct article usage
the govement
govement
 and countries GDP.Correct your spelling
government
movement