1980 1983 1986 1989 1992 1995 1998 2001 2004 2007 2010 2013E 2016E BG, ms ee em er — res ee se ea — ses es ca er — pees es ne aS es i 3 aS Soe — aS HS Soe aes eS Sl fk soe Ae 30% am Net Interest Payment ($B) $500 ISIS cs 5 mks ce 9 ms es Ts Hs Ses ect — saa Les ces ot — ee 5 ——As % of Total Revenue 24% g g SE