In 2012, LEGO released 3 Friends Horseback Riding sets, all of these sets have been retired. For that year, the total price of all retail sets cost $175, today those sets are valued around $475, a growth of 172%.
Most valuable 2012 LEGO Friends Horseback Riding set
3185 Summer Riding Camp $278.22
Highest growth 2012 Friends Horseback Riding set
3186 Emma's Horse Trailer +184.51%
3 sets

3185 Summer Riding Camp

Theme / Subtheme Friends / Horseback Riding
Year 2012
Pieces / Mini-doll figures 1,112 / 4
Availability Retired
3185 LEGO Friends Riding Camp
Retail $99.99
Value $278.22
Growth  +178.2%
Annual growth 8.9%

3186 Emma's Horse Trailer

Theme / Subtheme Friends / Horseback Riding
Year 2012
Pieces / Mini-doll figures 218 / 1
Availability Retired
3186 LEGO Friends Emma's Horse Trailer
Retail $24.99
Value $71.10
Growth  +184.5%
Annual growth 8.9%

3189 Heartlake Stables

Theme / Subtheme Friends / Horseback Riding
Year 2012
Pieces / Mini-doll figures 401 / 2
Availability Retired
3189 LEGO Friends Heartlake Stables
Retail $49.99
Value $125.96
Growth  +152.0%
Annual growth 7.5%