| Date | (US$ Billion) |
|---|---|
| 2010.04 | 357.56 |
| 2010.03 | 355.04 |
| 2010.02 | 352.73 |
| 2010.01 | 350.71 |
| 2009.12 | 348.20 |
| 2009.11 | 347.19 |
| 2009.10 | 341.22 |
| 2009.09 | 332.24 |
| 2009.08 | 325.42 |
| 2009.07 | 321.09 |
| 2009.06 | 317.56 |
| 2009.05 | 312.64 |
| 2009.04 | 304.66 |
| 2009.03 | 300.12 |
| 2009.02 | 294.19 |
| 2009.01 | 292.68 |
| 2008.12 | 291.71 |
| 2008.11 | 280.68 |
| 2008.10 | 278.15 |
| 2008.09 | 281.13 |
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