Complex sentence: In 1989, the first importation of Jarritos to retail stores in the U.S. began; by 1997, Jarritos became the most popular soft drink in the U.S. among Latino consumers.
Split into simpler sentences: In 1989, the first importation of Jarritos to retail stores in the U.S. began. By 1997, Jarritos became the most popular soft drink in the U.S. among Latino consumers.