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 | 0 | |
| 2020 | 0 | |
| 2019 | 0 | |
| 2018 | 0 | |
| 2017 | 0 | |
| 2016 | 0 | |
| 2015 | 0 | |
| 2014 | 0 | |
| 2013 | 0 | |
| 2012 | 0 | |
| 2011 | 0 | |
| 2010 | 0 |