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 | 204 | 18,86% |
| 2020 | 171 | -1,34% |
| 2019 | 174 | 2,91% |
| 2018 | 169 | -18,61% |
| 2017 | 207 | -6,86% |
| 2016 | 223 | 8,42% |
| 2015 | 205 | 1,73% |
| 2014 | 202 | -15,81% |
| 2013 | 240 | 19,19% |
| 2012 | 201 | 6,07% |
| 2011 | 190 | -2,34% |
| 2010 | 194 |