Year 2 (2011)
Pony Packs

Feathermay

Flitterheart

Lily Valley
Rarity's Carousel Boutique

Sweetie Swirl
McDonald's Toys

Cheerilee
Year 3 (2012)
Favorites Collection

Lemony Gem
Wedding Invitation Ponies

Cherry Berry
Pony Princess Wedding Castle

Princess Cadance - she might actually be from the Favorites Collection released the following year, but I can't tell!
McDonald's Toys

Pinkie Pie
Year 4 (2013)
Collector Series

Shadbowbolt Rainbow Dash
Rainbow Power

Rarity - I love her colors! I'm finding different info on if this is a 2013 or 2014 release, so she's going here for now.
Equestria Girls Doll and Pony Sets

Twilight - this poor Twilight came to me without her doll counterpart or her cutiemark piece!
Busy Book Figurines

Fluttershy - she is so small and weird. I love her.
Year 5 (2014)
Bagged Brushables

Lyra Heartstrings
POP! Style Kit

Zecora
POP! Deluxe Style Kit

Rarity
Year 6 (2015)
Water Cuties

Blossomforth
Equestria Girls Minis: Sleepover Singles

Rarity
Year 7 (2016)
Pearlized Singles

Nurse Redheart - interestingly, mlpmerch.com lists her as a Walgreens exclusive, but I bought her at a Five Below. It was also definitely a few years after her initial release!

Pretzel
Year 8 (2017)
Shining Friends

Fluttershy
Year 9 (2018)
Rainbow Roadtrip: Magical Salon

Pinkie Pie
Rainbow Roadtrip: On the Go

Twilight Sparkle - look how happy she is!
McDonald's Toys

Rainbow Dash - she has a wheel under her, and when you move her along the ground, her wings flap!

Fluttershy - I find the shape of these toys really charming.
Year 10 (2019)
Burger King Toys

Rarity