The given line chart depicts how the quantity of overseas students from Iran, Greece, and Turkey had changed in the period of 2005 and 2009.
It is apparent that there was a significant rise in the categories of Iranian and Turkish pupils whereas the Greek counterpart experienced a downward tendency.
Initially, the figure of Iranian and Turkish both increased to respectively 60 people and 50 people. While 2006-2008 saw a progressive growth in Turkish students, the trend of Iran marginally rose to stand approximately 80 people. However, the number of enrolling Iranian pupils from 2008 to 2009 surged at the range of 160, turned the category into the culmination.
Being the largest foreign student group with 180 people at the starting point, the number of Greek then took a remarkable decline to reach under 160 in 2006. It was followed by an exceedingly plunged before standing at 70, similar to Iran at the same time. Throughout 2007-2009, this trend plateaued to under 50 people with a slower speed than the former period. 
The  
given
 line chart depicts how the quantity of overseas students from Iran, Greece, and Turkey had  
changed
 in the period of 2005 and 2009.
It is apparent that there was a significant rise in the categories of Iranian and Turkish pupils whereas the Greek counterpart experienced a downward tendency. 
Initially
, the figure of Iranian and Turkish both increased to  
respectively
 60  
people
 and 50  
people
. While 2006-2008  
saw
 a progressive growth in Turkish students, the trend of Iran  
marginally
 rose to stand approximately 80  
people
.  
However
, the number of enrolling Iranian pupils from 2008 to 2009 surged at the range of 160, turned the category into the culmination.
Being the largest foreign student group with 180  
people
 at the starting point, the number of Greek then took a remarkable decline to reach under 160 in 2006. It  
was followed
 by an  
exceedingly
 plunged  
before
 standing at 70, similar to Iran at the same time. Throughout 2007-2009, this trend plateaued to under 50  
people
 with a slower speed than the former period.