The line graph gives information about the proportion of students from age 18 to 25 years old in universities in four various areas (Singapore, Malaysia, Philippines, Thailand) from 1961 to 2011.

The line graph gives information about the proportion of students from age 18 to 25 years old in universities in four various areas (Singapore, Malaysia, Philippines, Thailand) from 1961 to 2011.

The line graph gives information about the proportion of students from age 18 to 25 years old in universities in four various areas (Singapore, Malaysia, Philippines, Thailand) from 1961 to 2011.

The line graph gives information about the proportion of students from age 18 to 25 years old in universities in four various areas (Singapore, Malaysia, Philippines, Thailand) from 1961 to 2011.

The line graph gives information about the proportion of students from age 18 to 25 years old in universities in four various areas (Singapore, Malaysia, Philippines, Thailand) from 1961 to 2011.

The line graph gives information about the proportion of students from age 18 to 25 years old in universities in four various areas (Singapore, Malaysia, Philippines, Thailand) from 1961 to 2011.

The line graph gives information about the proportion of students from age 18 to 25 years old in universities in four various areas (Singapore, Malaysia, Philippines, Thailand) from 1961 to 2011.

The line graph gives information about the proportion of students from age 18 to 25 years old in universities in four various areas (Singapore, Malaysia, Philippines, Thailand) from 1961 to 2011.

The line graph gives information about the proportion of students from age 18 to 25 years old in universities in four various areas (Singapore, Malaysia, Philippines, Thailand) from 1961 to 2011.

The line graph gives information about the proportion of students from age 18-25 years old universities in four various areas (Singapore, Malaysia, Philippines, Thailand) since 1961 to 2011.