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
| Дата | Значение | Изменение , % |
|---|---|---|
| 2021 | 86 | 0,23% |
| 2020 | 86 | -6,50% |
| 2019 | 92 | 11,91% |
| 2018 | 82 | -2,73% |
| 2017 | 84 | -1,43% |
| 2016 | 86 | -15,99% |
| 2015 | 102 | -5,72% |
| 2014 | 108 | 11,43% |
| 2013 | 97 | -2,49% |
| 2012 | 99 | 44,87% |
| 2011 | 69 | 15,66% |
| 2010 | 59 |