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 | 476 | -4,63% |
| 2020 | 499 | 1,17% |
| 2019 | 493 | 5,96% |
| 2018 | 465 | -9,09% |
| 2017 | 512 | -6,55% |
| 2016 | 548 | 40,36% |
| 2015 | 390 | 21,30% |
| 2014 | 322 | 15,67% |
| 2013 | 278 | -2,40% |
| 2012 | 285 | -6,79% |
| 2011 | 306 | -3,29% |
| 2010 | 316 |