By Veronika Bondarenko A week after Starbucks brought in its new fall menu, foot traffic soared by 25.7%. While many of us will poke fun at the western world’s obsession with pumpkin spice, the flavor never fails to signal the start of the fall — and bring in serious business. First introduced by Starbucks (SBUX) – Get Starbucks Corporation Report in 2003, the Pumpkin Spice latte has evolved into a cult classic with its ambiguously “autumn” taste of pumpkin, cinnamon, nutmeg, and cloves. Along with its loyal fan base, that pumpkin spice flavor also comes with certain stereotypes and what seems…