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 $1,371, a growth of 11338%.
Most valuable 1992 LEGO Promotional set
1924-2 Viking Line Ferry $680.88
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 $690.49
Growth  +5658.9%
Annual growth 8.0%

1924-2 Viking Line Ferry

Theme / Subtheme Promotional / Ferries
Year 1992
Pieces 203
Availability Retired
1924-2 LEGO Viking Line Ferry
promotional
Value $680.88
Annual growth 3.3%