A-level had biggest improvements at National Exam Singapore 

	2002	2011	2002	2011	2002	2011
	PSLE	PSLE	O-levels	O-levels	A-levels	A-levels
Overall	96.3%	97.4%	80.0%	81.6%	85.2%	90.8%
Improved		+1.1%		+1.6%		+5.6%

O-levels at least 5 O-levels subjects: Passed

A-levels at least 3 H2 subjects and Gen Paper/ Knowledge and Inquiry: Passed