In 1992, LEGO released 2 Promotional sets across 2 subthemes, all of these sets have been retired. Subthemes for that year included Ferries and Value Packs. For that year, the total price of all retail sets cost $12, today those sets are valued around $1,309, a growth of 10814%.
Most valuable 1992 LEGO Promotional set
1924-2 Viking Line Ferry $669.09
Most owned 1992 Promotional set
1891 Four Set Value Pack
2 sets

1891 Four Set Value Pack

Theme / Subtheme Promotional / Value Packs
Year 1992
Pieces 160
Availability Retired
1891 LEGO Four Set Value Pack
Retail $11.99
Value $639.49
Growth  +5233.5%
Annual growth 8.3%

1924-2 Viking Line Ferry

Theme / Subtheme Promotional / Ferries
Year 1992
Pieces 203
Availability Retired
1924-2 LEGO Viking Line Ferry
promotional
Value $669.09
Annual growth 3.2%