| 年份 | 分类 | 数值（十亿美元） |
| 2005 | Supplements to wages and salaries | 1,394.80 |
| 2006 | Supplements to wages and salaries | 1,444.90 |
| 2007 | Supplements to wages and salaries | 1,503.10 |
| 2008 | Supplements to wages and salaries | 1,546.40 |
| 2009 | Supplements to wages and salaries | 1,535.60 |
| 2010 | Supplements to wages and salaries | 1,583.90 |
| 2011 | Supplements to wages and salaries | 1,635.90 |
| 2012 | Supplements to wages and salaries | 1,679.60 |
| 2013 | Supplements to wages and salaries | 1,725.80 |
| 2014 | Supplements to wages and salaries | 1,779.70 |
| 2015 | Supplements to wages and salaries | 1,849.40 |
| 2016 | Supplements to wages and salaries | 1,893.40 |