Timeline for all types of items produced by
JY Co.

Year	Items
1991	1
1992	1
1993	3
1994	10
1995	29
1996	41
1997	37
1998	16
2005	1

139 items with a valid date were considered for this timeline (55.16% of the total)
113 items with an invalid date.

Help us in our quest to find exact dates for:

199?: 109 items.
200?: 4 items.