how long does it take to get a black belt in bjj?

Does anyone know how to get a BJJ black belt quickly? What is the minimum time it takes for someone to progress through the ranks and achieve a black belt in Brazilian Jiu-Jitsu (BJJ)? I know what is BJJ, how it works, and much more, but I want to know the minimum time frame to achieve my goal of getting a black belt, considering the dedication, training frequency, and skill development required.