Timeline for all types of items produced by
System 4 de Espana, S.A. [Spain]

Year	Items
1985	1
1986	12
1987	16
1988	32
1989	19
1990	18
1991	13

111 items with a valid date were considered for this timeline (78.17% of the total)
31 items with an invalid date.

Help us in our quest to find exact dates for:

198?: 31 items.