单位:千吨
                时间范围:1996 - 2021
                数据来源:DOE
            | 序号 | 时间(年) | 数据(千吨) | 同比(%) | 
|---|---|---|---|
| 1 | 2021 | ||
| 2 | 2020 | ||
| 3 | 2019 | ||
| 4 | 2018 | ||
| 5 | 2017 | ||
| 6 | 2016 | 0.11 | -77.55 | 
| 7 | 2015 | 0.49 | 22.5 | 
| 8 | 2014 | 0.40 | 566.67 | 
| 9 | 2013 | 0.06 | 200 | 
| 10 | 2012 | 0.02 | -66.67 | 
| 11 | 2011 | 0.06 | 500 | 
| 12 | 2010 | 0.01 | -66.67 | 
| 13 | 2009 | 0.03 | 0 | 
| 14 | 2008 | 0.03 | 0 | 
| 15 | 2007 | 0.03 | 50 | 
| 16 | 2006 | 0.02 | 0 | 
| 17 | 2005 | 0.02 | 0 | 
| 18 | 2004 | 0.02 | 100 | 
| 19 | 2003 | 0.01 | 0 | 
| 20 | 2002 | 0.01 | 0 | 
| 21 | 2001 | 0.01 | 0 | 
| 22 | 2000 | 0.01 | 0 | 
| 23 | 1996 | 0.01 | 0 | 
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