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 | 448 | 29.72% |
| 2020 | 346 | -7.23% |
| 2019 | 373 | -4.00% |
| 2018 | 388 | 18.79% |
| 2017 | 327 | -2.08% |
| 2016 | 334 | 41.09% |
| 2015 | 236 | 6.98% |
| 2014 | 221 | 2.53% |
| 2013 | 216 | 15.67% |
| 2012 | 186 | -8.86% |
| 2011 | 205 | 8.36% |
| 2010 | 189 |