In which year, was the number of Matriculate job-seekers maximum?

As per given graph, we can calculate
Number of Matriculate job-seekers :
In 2003 → 1400 - 650 = 750
In 2004 → 1625 - 1000 = 625
In 2006 → 2300 - 1250 = 1050
In 2008 → 1400 - 2200 = 1800
Hence, in 2008, number of Matriculate job-seekers was maximum.