How much “Super Mario” per year?

It's impossible to objectively quantify art, but we try anyway. For example: Is “Super Mario” a good video-game franchise? Looking at review scores, Super Mario includes some of the most universally-acclaimed games ever published: Galaxy, Galaxy 2, and Odyssey are respectively the #4, #5, and #13 highest ranking video-games of all time on Metacritic, all with 97 overall. Chances seem good? What if we tried quantifying art in a different and slightly more reductive way? This blog post introduces and calculates a new unit: “Super Mario per year”. If you enjoy this franchise like I do then this unit is of particular importance to you. Calculating “Super Mario per year” There have been ~19 titles (and two add-ons) published to what I consider the "main-line" Super Mario games, both 2D and 3D. Below is a table with every title, the year it was published, and the approximate duration to play. This last column is the most subjective, because there’s speed-runners, casual players,…