Timeline for all types of items produced by
Sigma Game, Inc.

Year	Items
1988	1
1992	1
1993	1
1994	1
1995	1
1997	1
1998	1
2000	4
2001	5
2002	4
2003	2
2004	1

23 items with a valid date were considered for this timeline (46.94% of the total)
26 items with an invalid date.

Help us in our quest to find exact dates for:

199?: 7 items.
19??: 1 item.
200?: 17 items.
????: 1 item.