Timeline for all types of items produced by
HTL [Hotline] [Netherlands]

Year	Items
1982	1
1984	6
1985	8
1986	24
1987	129
1988	66
1989	62
1990	18
1991	14
1992	2
1997	1

331 items with a valid date were considered for this timeline (96.50% of the total)
12 items with an invalid date.

Help us in our quest to find exact dates for:

198?: 1 item.
199?: 1 item.
19??: 10 items.