Timeline for all types of items produced by
Robot PD

Year	Items
1990	1
1991	2
1992	2
1993	2
1994	2
1995	1
1998	1

11 items with a valid date were considered for this timeline (5.53% of the total)
188 items with an invalid date.

Help us in our quest to find exact dates for:

199?: 188 items.