Figures in constant (2020) US$ are present according to calendar year, calculated on the assumption that, where financial years do not correspond to calendar years, spending is distributed evenly through the year
| 日付 | 値 | 変更 , % |
|---|---|---|
| 2021 | 488 | -3.09% |
| 2020 | 504 | -6.12% |
| 2019 | 537 | -5.20% |
| 2018 | 566 | 0.86% |
| 2017 | 562 | 4.32% |
| 2016 | 538 | 9.79% |
| 2015 | 490 | 2.51% |
| 2014 | 478 | 9.08% |
| 2013 | 438 | 0.25% |
| 2012 | 437 | -6.38% |
| 2011 | 467 | -2.73% |
| 2010 | 480 |