US dollar billion, at current prices and exchange rates.
| तिथि | मान | बदले , % |
|---|---|---|
| 2019 | 20.4 | 9.53% |
| 2018 | 18.6 | -3.41% |
| 2017 | 19.3 | -7.10% |
| 2016 | 20.8 | -5.67% |
| 2015 | 22.0 | -14.99% |
| 2014 | 25.9 | 10.89% |
| 2013 | 23.3 | 30.39% |
| 2012 | 17.9 | 22.01% |
| 2011 | 14.7 | 1.46% |
| 2010 | 14.5 | -9.46% |
| 2009 | 16.0 | -32.53% |
| 2008 | 23.7 |