In 2014, LEGO released 4 Duplo Building Sets sets, all of these sets have been retired. For that year, the total price of all retail sets cost $140, today those sets are valued around $404, a growth of 189%.
Most valuable 2014 LEGO Duplo Building Sets set
10571 All-in-One-Box-of-Fun Pink $157.51
Largest 2014 LEGO Duplo Building Sets set
10580 Deluxe Box of Fun 95 pieces
Most owned 2014 Duplo Building Sets set
10572 All-in-One-Box-of-Fun
4 sets

10571 All-in-One-Box-of-Fun Pink

Theme / Subtheme Duplo / Building Sets
Year 2014
Pieces / Duplo figures 65 / 1
Availability Retired
10571 LEGO Duplo All-in-One-Box-of-Fun Pink
Retail $29.99
Value $157.51
Growth  +425.2%
Annual growth 10.7%

10572 All-in-One-Box-of-Fun

Theme / Subtheme Duplo / Building Sets
Year 2014
Pieces / Duplo figures 65 / 1
Availability Retired
10572 LEGO Duplo All-in-One-Box-of-Fun
Retail $29.99
Value $117.54
Growth  +291.9%
Annual growth 8.5%

10575 Creative Building Cube

Theme / Subtheme Duplo / Building Sets
Year 2014
Pieces 75
Availability Retired
10575 LEGO Duplo Creative Building Cube
Retail $29.99
Value $70.54
Growth  +135.2%
Annual growth 4.3%

10580 Deluxe Box of Fun

Theme / Subtheme Duplo / Building Sets
Year 2014
Pieces / Duplo figures 95 / 2
Availability Retired
10580 LEGO Duplo Deluxe Box of Fun
Retail $49.99
Value $58.29
Growth  +16.6%
Annual growth 2.5%