| Date | Total Exportation (Million tons) | Total Exported Quantity to China (Million tons) | Percentage Exported to China |
| 2000 | 9.5 | 0 | 0% |
| 2001 | 10.5 | 0 | 0% |
| 2002 | 10.4 | 0.000038 | 0% |
| 2003 | 11.7 | 0.00013 | 0% |
| 2004 | 11.9 | 0.00024 | 0% |
| 2005 | 12.7 | 0 | 0% |
| 2006 | 15.1 | 0.00036 | 0% |
| 2007 | 15.2 | 0.0002 | 0% |
| 2008 | 16 | 0.00031 | 0% |
| 2009 | 13.9 | 0.000024 | 0% |
| 2010 | 12.6 | 0.000065 | 0% |
| 2011 | 12.9 | 0.00013 | 0% |
| 2012 | 14.5 | 0.052 | 0% |
| 2013 | 15.2 | 0.57 | 4% |
| 2014 | 18.6 | 0.19 | 1% |
| 2015 | 19.7 | 0.32 | 2% |
| 2016 | 29.45 | 13 | 44% |
| 2017 | 48.64 | 27.6 | 57% |
| 2018 | 58.05 | 38.2 | 66% |
| 2019 | 66.28 | 44.4 | 67% |
| 2020 | 82.56 | 48 | 58% |
| Grand Total | 505.38 | 172.33 | 34% |