Quoted By:
>Red/Blue: 31.38 million
>Gold/Silver: 23.10 million
>Ruby/Sapphire: 16.22 million
>Diamond/Pearl: 17.67 million
>Black/White: 15.64 million
>X/Y: 16.11 million
>Sun/Moon: 15.44 million
Almost already passed XY with only a few months on the market. When Sun/Moon finally stop selling in a few years, they'll likely be the best-selling games since Gold/Silver.