Timeline for all types of items produced by
Spectrum Discovery Club

Year	Items
1987	2
1988	6
1989	6
1990	8
1991	6
1992	7
1994	6
1995	3

44 items with a valid date were considered for this timeline (81.48% of the total)
10 items with an invalid date.

Help us in our quest to find exact dates for:

198?: 10 items.