Each of the last 4 years proceedings seem to be the same font (presumably 9pt)
and have the same proportions on lines, with 63 lines max (if no bolding).

2002: (25 papers) 358 pages + front matter
	
	358-9*2-2=338/25 = 13.52 pages average per paper

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2003: (34 papers) 420 pages + front matter
	
	420-11*2-2-2=394/34 = 11.6 pages average per paper
		(few 8pgs for position papers, 2 14pgs, all else 12 or 10)

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2004: (31 papers) 392 pages + front matter
	
	392-2-2=388/31 = 12.5 pages average per paper
                         11 papers with 14 pages

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2005: (27 papers) 328 pages + front matter
	
	328-4=324/27 = 12.0 pages average per paper
        i.e. all papers were 12 pages