单位:千吨
时间范围:1994 - 2019
数据来源:美国地质调查局
序号 | 时间(年) | 数据(千吨) |
---|---|---|
1 | 2019 | |
2 | 2018 | |
3 | 2017 | |
4 | 2016 | |
5 | 2015 | |
6 | 2014 | 80.00 |
7 | 2013 | 70.00 |
8 | 2012 | 45.00 |
9 | 2011 | 43.00 |
10 | 2010 | 43.00 |
11 | 2009 | 346.00 |
12 | 2008 | 346.00 |
13 | 2007 | 346.00 |
14 | 2006 | 345.00 |
15 | 2005 | 346.00 |
16 | 2004 | 288.00 |
17 | 2003 | 288.00 |
18 | 2002 | 288.00 |
19 | 2001 | 288.00 |
20 | 2000 | 288.00 |
21 | 1999 | 288.00 |
22 | 1998 | 460.00 |
23 | 1997 | 461.00 |
24 | 1996 | 461.00 |
25 | 1995 | 461.00 |
26 | 1994 | 461.00 |
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