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
| Data | Valor | Modificar, % |
|---|---|---|
| 2021 | 418 | -3,96% |
| 2020 | 435 | 2,98% |
| 2019 | 423 | -3,17% |
| 2018 | 437 | -1,88% |
| 2017 | 445 | 15,06% |
| 2016 | 387 | 6,24% |
| 2015 | 364 | -3,97% |
| 2014 | 379 | 13,02% |
| 2013 | 335 | 9,60% |
| 2012 | 306 | -5,13% |
| 2011 | 323 | 3,38% |
| 2010 | 312 |