查询结果如下：   

年份	分类	数值（十亿美元）
2005	Gross saving	2,338.60
2006	Gross saving	2,648.10
2007	Gross saving	2,500.30
2008	Gross saving	2,268.40
2009	Gross saving	2,067.90
2010	Gross saving	2,257.50
2011	Gross saving	2,434.60
2012	Gross saving	2,861.20
2013	Gross saving	3,050.50
2014	Gross saving	3,337.20
2015	Gross saving	3,446.30
2016	Gross saving	3,426.20