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 | 270,017 | 4.67% |
| 2020 | 257,973 | 4.71% |
| 2019 | 246,361 | 4.87% |
| 2018 | 234,917 | 5.86% |
| 2017 | 221,918 | 6.15% |
| 2016 | 209,060 | 5.76% |
| 2015 | 197,681 | 7.85% |
| 2014 | 183,291 | 7.98% |
| 2013 | 169,742 | 8.13% |
| 2012 | 156,979 | 10.27% |
| 2011 | 142,353 | 7.35% |
| 2010 | 132,604 |