Timeline for all types of items produced by
Adventure International

Year	Items
1978	1
1979	22
1980	58
1981	122
1982	84
1983	56
1984	31
1985	17
1986	6
1987	3
1997	1

401 items with a valid date were considered for this timeline (75.95% of the total)
127 items with an invalid date.

Help us in our quest to find exact dates for:

198?: 126 items.
19??: 1 item.