sentences:  In 1973, Sumter officials negotiated an agreement between USC and Clemson for the school to join the USC branch system.In the past ten years, Clemson has experienced a larger percentage of enrollment growth over its rival school.Since 2005, Clemson University has grown by 30.5 percent compared to USC's 24.5 percent growth at its main Columbia campus and a 22.5 percent enrollment increase in the entire USC system.