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
| 日付 | 値 | 変更 , % |
|---|---|---|
| 2021 | 94 | 7.18% |
| 2020 | 87 | 14.75% |
| 2019 | 76 | 7.93% |
| 2018 | 71 | 8.17% |
| 2017 | 65 | 1.41% |
| 2016 | 64 | 2.94% |
| 2015 | 62 | -4.34% |
| 2014 | 65 | -0.01% |
| 2013 | 65 | -0.50% |
| 2012 | 66 | -2.25% |
| 2011 | 67 | 11.93% |
| 2010 | 60 |