Table 1.

# Concepts (“C”) / # partial-areas (“PA”) for levels (2004 vs. 2007)

Level	2004 Version			2007 Version
	C	PA	C/PA	C	PA	C/PA
0	29	1	29.0	21	1	21.0
1	399	153	2.6	468	45	10.4
2	430	186	2.3	517	269	1.9
3	194	107	1.8	48	44	1.1
4	4	4	1.0	2	2	1.0
Total:	1,056	451	2.3	1,056	361	2.9