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 | 101 | -9,70% |
| 2020 | 112 | 8,63% |
| 2019 | 103 | 2,71% |
| 2018 | 101 | 3,96% |
| 2017 | 97 | -1,01% |
| 2016 | 98 | 2,38% |
| 2015 | 95 | -0,79% |
| 2014 | 96 | 7,97% |
| 2013 | 89 | -7,49% |
| 2012 | 96 | 22,32% |
| 2011 | 79 | 36,67% |
| 2010 | 58 |