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 | 330 | -3.61% |
| 2020 | 343 | 0.37% |
| 2019 | 341 | 19.94% |
| 2018 | 285 | -2.05% |
| 2017 | 291 | -12.48% |
| 2016 | 332 | 9.55% |
| 2015 | 303 | -0.64% |
| 2014 | 305 | -6.39% |
| 2013 | 326 | 7.00% |
| 2012 | 305 | 10.18% |
| 2011 | 276 | 5.77% |
| 2010 | 261 |