LEGO® Minifigures™ Series 16 were introduced in 2016. Collection includes: Desert Warrior, Penguin Boy, Ice Queen, Spy, Banana Guy, Hiker, Kickboxer, Spooky Boy, Rogue, Cyborg, Cute Little Devil, Dog Show Winner, Scallywag Pirate, Babysitter, Wildlife Photographer and the Mariachi.
The idea behind collectable Minifigures™ was that each minifigure come in a sealed bag, so you never knew which minifigure you might get. You can reed more details on Series 1, Series 2, Series 3, Series 4, Series 5, Series 6, Series 7, Series 8, Series 9, Series 10, Series 11, Series 12, Series 13, Series 14 and Series 15.
Detailed information can be found on LEGO® website here.
Although released in 2016, not available any more You can still try to find them on eBay.
Some more information on this series can be found on Brickipedia.
Below you can find photos of all Minifigures in this collection:
