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
| Datum | Wert | Ändern , % |
|---|---|---|
| 2021 | 767.780 | -1,36 % |
| 2020 | 778.397 | 4,71 % |
| 2019 | 743.403 | 5,68 % |
| 2018 | 703.431 | 3,01 % |
| 2017 | 682.878 | -1,03 % |
| 2016 | 689.988 | -0,31 % |
| 2015 | 692.111 | -2,27 % |
| 2014 | 708.194 | -6,15 % |
| 2013 | 754.611 | -7,69 % |
| 2012 | 817.492 | -5,55 % |
| 2011 | 865.570 | -1,18 % |
| 2010 | 875.942 |