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
| तिथि | मान | बदले , % |
|---|---|---|
| 2021 | 182 | 8.37% |
| 2020 | 168 | 0.50% |
| 2019 | 167 | 0.76% |
| 2018 | 165 | 3.69% |
| 2017 | 160 | -3.69% |
| 2016 | 166 | -0.80% |
| 2015 | 167 | 3.00% |
| 2014 | 162 | -2.72% |
| 2013 | 167 | -3.01% |
| 2012 | 172 | -1.26% |
| 2011 | 174 | -11.46% |
| 2010 | 197 |