Timeline for all types of items produced by
Software Projects, Ltd.

Year	Items
1983	12
1984	18
1985	15
1986	5
1987	7
1988	1
1990	1
1991	1
1992	1

61 items with a valid date were considered for this timeline (92.42% of the total)
5 items with an invalid date.

Help us in our quest to find exact dates for:

198?: 5 items.