Net savings
0
2,000
4,000
6,000
8,000
10,000
12,000
14,000
16,000
18,000
20,000
22,000
1992
1994
1996
1998
2000
2002
2004
2006
2008
2010
2012
2014
2016
Net saving ($ millions)
Net saving ($ millions)