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
| Fecha | Valor | Cambiar , % |
|---|---|---|
| 2021 | 141 | 9,64 % |
| 2020 | 129 | -33,98 % |
| 2019 | 195 | -38,51 % |
| 2018 | 318 | 40,46 % |
| 2017 | 226 | -56,89 % |
| 2016 | 525 | -70,81 % |
| 2015 | 1.797 | -19,72 % |
| 2014 | 2.238 | 30,38 % |
| 2013 | 1.717 | -0,59 % |
| 2012 | 1.727 | -36,14 % |
| 2011 | 2.704 | 42,31 % |
| 2010 | 1.900 |