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 | 715 | 8.45% |
| 2020 | 659 | 3.53% |
| 2019 | 637 | 1.07% |
| 2018 | 630 | 5.21% |
| 2017 | 599 | 0.44% |
| 2016 | 596 | 9.44% |
| 2015 | 545 | 16.22% |
| 2014 | 469 | 11.41% |
| 2013 | 421 | 15.52% |
| 2012 | 364 | 1.56% |
| 2011 | 359 | 7.66% |
| 2010 | 333 |