Pez has released all of the Presidents in Plastic Pezidential Pez Perfection! The first 5 were released in 2011. Presidents 6-15 were released in 2012. Presidents 16-25 in 2013, Presidents 26-35 in 2014, and Presidents 36-45 were released in 2015. These Presidential Pez are limited edition, and only available for a limited time. Once sold out, they are gone for good. Thanks.