Table 3 Variance analysis table for Seoul and Busan (1Q 2007 - 4Q 2010)

Region	Factor	Sum of squares	Degree of freedom	Mean square	F-value	p-value
Seoul	Factor (quarter)	37.8996075	3	12.6332025	0.22	0.8773
	Error	674.203701	12	56.1836418
	Total	712.103309	15
Busan	Factor (quarter)	134.16473	3	44.7215765	0.29	0.8322
	Error	1853.66738	12	154.472282
	Total	1987.83211	15	132.522141