Timeline for all types of items produced by
Sirius Soft., Inc. [Sacramento, CA, USA]

Year	Items
1980	3
1981	24
1982	32
1983	28
1984	2

89 items with a valid date were considered for this timeline (96.74% of the total)
3 items with an invalid date.

Help us in our quest to find exact dates for:

198?: 3 items.