Year	Papers in Final Pgm	Papers in Proceedings	Ratio Proc./Pgm	Exhibitors
1974	41	31	0.75
1975	47	37	0.79
1976	100	60	0.6
1977	100	60	0.6
1978	104	62	0.6
1979	154	102	0.66
1980	150	122	0.81
1981	147	88	0.6
1982	117	75	0.64
1983	179	94	0.53	15
1984	200	92	0.46	36
1985	217	86	0.4	35
1986	225	101	0.45	41
1987	288	164	0.57	87
1988	249	128	0.51	39
1989	301	131	0.44	32
1990	490	219	0.45	50
1991	445	168	0.38	49
1992	380	158	0.42	54
1993	336	182	0.54	40
1994	521	225	0.43	43
1995	538	245	0.46	61
1996	594	223	0.38	66
1997	661	235	0.36	72
1998	589	175	0.3	86
1999	585	212	0.36	78
2000	670	230	0.34	80
2001	675	202	0.3	86
2002	657	208	0.32	73
2003	662	237	0.36	60

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