PepsiCo established uniform protocols for energy and water measurement and reporting in 2005 and rolled them out for use across all divisions for the first time in 2006. Prior to this, Frito-Lay North America (FLNA) had been collecting data since 1999. Quaker/ Tropicana/Gatorade began data collection in 2004. PepsiCo International has now collected one full year of data.This is the first time year-over-year comparisons are availablefor PepsiCo as a whole. The data collected representsPepsiCo-owned manufacturing sites with 100 percent ofusage at FLNA and Quaker/Tropicana/Gatorade and 90percent at PepsiCo International.

source:(http://www.pepsico.com/Assets/Download/PepsiCo_2007_Sustainability_Report_Overview.pdf)