In 2018, LEGO released 20 Minifigure Series Series 18 sets, all of these sets have been retired. For that year, the total price of all retail sets cost $375, today those sets are valued around $693, a growth of 85%.
Most valuable 2018 Minifigure Series Series 18 set
Series 18 Sealed Box $396.81
Highest growth 2018 Minifigure Series Series 18 set
Classic Police Officer +421.80%
Largest 2018 Minifigure Series Series 18 set
Birthday Party Girl 9 pieces
Most owned 2018 Minifigure Series Series 18 set
Brick Suit Guy
20 sets

Series 18 Random Bag

Theme / Subtheme Minifigure Series / Series 18
Year 2018
Minifigs 1
Availability Retired
Series 18 Random Bag
Retail $3.99
Value $9.24
Growth  +131.6%
Annual growth 12.7%

Elephant Girl

Theme / Subtheme Minifigure Series / Series 18
Year 2018
Pieces / Minifigs 6 / 1
Availability Retired
LEGO Minifigure Series 18 Elephant Girl
Retail $3.99
Value $10.13
Growth  +153.9%
Annual growth 9.0%

Brick Suit Guy

Theme / Subtheme Minifigure Series / Series 18
Year 2018
Pieces / Minifigs 5 / 1
Availability Retired
LEGO Minifigure Series 18 Brick Suit Guy
Retail $3.99
Value $4.54
Growth  +13.8%
Annual growth 1.7%

Brick Suit Girl

Theme / Subtheme Minifigure Series / Series 18
Year 2018
Pieces / Minifigs 5 / 1
Availability Retired
LEGO Minifigure Series 18 Brick Suit Girl
Retail $3.99
Value $8.69
Growth  +117.8%
Annual growth 7.5%

Party Clown

Theme / Subtheme Minifigure Series / Series 18
Year 2018
Pieces / Minifigs 8 / 1
Availability Retired
LEGO Minifigure Series 18 Party Clown
Retail $3.99
Value $9.00
Growth  +125.6%
Annual growth 5.7%

Firework Guy

Theme / Subtheme Minifigure Series / Series 18
Year 2018
Pieces / Minifigs 4 / 1
Availability Retired
LEGO Minifigure Series 18 Firework Guy
Retail $3.99
Value $4.24
Growth  +6.3%
Annual growth 1.9%

Birthday Party Girl

Theme / Subtheme Minifigure Series / Series 18
Year 2018
Pieces / Minifigs 9 / 1
Availability Retired
LEGO Minifigure Series 18 Birthday Party Girl
Retail $3.99
Value $6.34
Growth  +58.9%
Annual growth 4.6%

Dragon Suit Guy

Theme / Subtheme Minifigure Series / Series 18
Year 2018
Pieces / Minifigs 6 / 1
Availability Retired
LEGO Minifigure Series 18 Dragon Suit Guy
Retail $3.99
Value $15.66
Growth  +292.5%
Annual growth 13.9%

Classic Police Officer

Theme / Subtheme Minifigure Series / Series 18
Year 2018
Pieces / Minifigs 6 / 1
Availability Retired
LEGO Minifigure Series 18 Classic Police Officer
Retail $3.99
Value $20.82
Growth  +421.8%
Annual growth 13.0%

Spider Suit Boy

Theme / Subtheme Minifigure Series / Series 18
Year 2018
Pieces / Minifigs 6 / 1
Availability Retired
LEGO Minifigure Series 18 Spider Suit Boy
Retail $3.99
Value $7.81
Growth  +95.7%
Annual growth 7.1%

Birthday Cake Guy

Theme / Subtheme Minifigure Series / Series 18
Year 2018
Pieces / Minifigs 6 / 1
Availability Retired
LEGO Minifigure Series 18 Birthday Cake Guy
Retail $3.99
Value $4.54
Growth  +13.8%
Annual growth 3.4%

Cactus Girl

Theme / Subtheme Minifigure Series / Series 18
Year 2018
Pieces / Minifigs 4 / 1
Availability Retired
LEGO Minifigure Series 18 Cactus Girl
Retail $3.99
Value $7.90
Growth  +98.0%
Annual growth 4.6%

Cat Costume Girl

Theme / Subtheme Minifigure Series / Series 18
Year 2018
Pieces / Minifigs 6 / 1
Availability Retired
LEGO Minifigure Series 18 Cat Costume Girl
Retail $3.99
Value $5.15
Growth  +29.1%
Annual growth 3.2%

Race Car Guy

Theme / Subtheme Minifigure Series / Series 18
Year 2018
Pieces / Minifigs 6 / 1
Availability Retired
LEGO Minifigure Series 18 Race Car Guy
Retail $3.99
Value $5.65
Growth  +41.6%
Annual growth 6.9%

Flower Pot Girl

Theme / Subtheme Minifigure Series / Series 18
Year 2018
Pieces / Minifigs 5 / 1
Availability Retired
LEGO Minifigure Series 18 Flower Pot Girl
Retail $3.99
Value $5.00
Growth  +25.3%
Annual growth 4.4%

Cowboy Costume Guy

Theme / Subtheme Minifigure Series / Series 18
Year 2018
Pieces / Minifigs 5 / 1
Availability Retired
LEGO Minifigure Series 18 Cowboy Costume Guy
Retail $3.99
Value $4.48
Growth  +12.3%
Annual growth 1.7%

Birthday Party Boy

Theme / Subtheme Minifigure Series / Series 18
Year 2018
Pieces / Minifigs 9 / 1
Availability Retired
LEGO Minifigure Series 18 Birthday Party Boy
Retail $3.99
Value $6.05
Growth  +51.6%
Annual growth 7.7%

Unicorn Guy

Theme / Subtheme Minifigure Series / Series 18
Year 2018
Pieces / Minifigs 8 / 1
Availability Retired
LEGO Minifigure Series 18 Unicorn Guy
Retail $3.99
Value $8.11
Growth  +103.3%
Annual growth 5.1%

Series 18 Complete Set

Theme / Subtheme Minifigure Series / Series 18
Year 2018
Minifigs 16
Availability Retired
Series 18 Complete Set
Retail $64.00
Value $153.27
Growth  +139.5%
Annual growth 7.4%

Series 18 Sealed Box

Theme / Subtheme Minifigure Series / Series 18
Year 2018
Minifigs 60
Availability Retired
Series 18 Sealed Box
Retail $239.40
Value $396.81
Growth  +65.8%
Annual growth 6.4%