US dollar billion, at current prices and exchange rates.
| तिथि | मान | बदले , % |
|---|---|---|
| 2019 | 0.4 | -44.00% |
| 2018 | 0.7 | -24.28% |
| 2017 | 0.9 | -18.53% |
| 2016 | 1.1 | -43.05% |
| 2015 | 1.9 | -31.07% |
| 2014 | 2.8 | -16.67% |
| 2013 | 3.4 | 4.35% |
| 2012 | 3.2 | 11.42% |
| 2011 | 2.9 | 3.21% |
| 2010 | 2.8 | 17.65% |
| 2009 | 2.4 | -4.80% |
| 2008 | 2.5 |