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 | 7,176 | 14.43% |
| 2020 | 6,271 | 4.07% |
| 2019 | 6,026 | 8.84% |
| 2018 | 5,537 | 3.30% |
| 2017 | 5,360 | 0.00% |
| 2016 | 5,360 | 1.32% |
| 2015 | 5,290 | 1.07% |
| 2014 | 5,234 | 5.95% |
| 2013 | 4,940 | 0.58% |
| 2012 | 4,912 | 2.09% |
| 2011 | 4,811 | -5.97% |
| 2010 | 5,117 |