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 | 346 | -5.99% |
| 2020 | 368 | -0.71% |
| 2019 | 371 | -4.53% |
| 2018 | 388 | -4.26% |
| 2017 | 406 | -9.09% |
| 2016 | 446 | -11.25% |
| 2015 | 503 | 9.63% |
| 2014 | 459 | 47.05% |
| 2013 | 312 | 5.36% |
| 2012 | 296 | -1.56% |
| 2011 | 301 | 5.66% |
| 2010 | 285 |