The data illustrates the 
percentage
 of Use synonyms
children
 Use synonyms
Change preposition
with respects
respects
 to Correct subject-verb agreement
respect
total
 young population in four different Correct article usage
the total
categories
 of ages. From 1990 to 2001 in Check wording
age categories
United
 Kingdom. 
Correct article usage
the United
Overall
, early childhood from birth to 4 and teenagers Linking Words
ages
 from 15 to 19 started with nearly Replace the word
aged
same
 proportion ,but they decreased in different periods. When Correct article usage
the same
children
 Use synonyms
percentage
 Use synonyms
between
 5-14 started to increase, Correct word order
of children between
children
 Use synonyms
who had
 5-9 years old dropped in total Verb problem
aged
of 
Correct word order
apply
children
 until the end of the period. 
Use synonyms
To begin
 with, in 1990, kids Linking Words
percentage
 between 0 to 4 started around 25 Use synonyms
Use synonyms
percentage
 and it had Use the right word
per cent
represented 
a Verb problem
apply
little
 Correct word choice
slight
rising
 by 1992 Replace the word
rise
for
 over 26 Change preposition
to
percentage
 , Use synonyms
then
 it dropped relatively Linking Words
from
 1992 until the end. Teenagers proportion between 15 to 19  years old failed dramatically, and despite fluctuations, it started to recover in 1995 to reach 25 Rephrase
steadily from
percentage
. 
Notably, childhood ages from 5 to 9 Use synonyms
begin
 Wrong verb form
began
under
 25 Change preposition
at under
percentage
 in 1990, and showed some Use synonyms
rising
 between 1993 to 1997 , and Replace the word
rise
this
 trend declined slightly throughout the year. Linking Words
While
 Linking Words
children
 between 10 to 14 years old started with the lowest amount of young population by under 24 Use synonyms
Use synonyms
percentage 
, it recorded the biggest Use the right word
per cent
rising
 and reached the peak in 2001.Replace the word
rise