单位:千吨
时间范围:1994 - 2023
数据来源:美国地质调查局
| 序号 | 时间(年) | 数据(千吨) |
|---|---|---|
| 1 | 2023 | |
| 2 | 2022 | |
| 3 | 2021 | |
| 4 | 2020 | |
| 5 | 2019 | |
| 6 | 2018 | 36000.00 |
| 7 | 2017 | 31000.00 |
| 8 | 2016 | 30400.00 |
| 9 | 2015 | 31000.00 |
| 10 | 2014 | 29000.00 |
| 11 | 2013 | 28800.00 |
| 12 | 2012 | 25600.00 |
| 13 | 2011 | 23300.00 |
| 14 | 2010 | 23700.00 |
| 15 | 2009 | 19300.00 |
| 16 | 2008 | 23800.00 |
| 17 | 2007 | 21500.00 |
| 18 | 2006 | 19600.00 |
| 19 | 2005 | 19300.00 |
| 20 | 2004 | 17500.00 |
| 21 | 2003 | 15500.00 |
| 22 | 2002 | 13500.00 |
| 23 | 2001 | 12100.00 |
| 24 | 2000 | 14400.00 |
| 25 | 1999 | 13500.00 |
| 26 | 1998 | 12700.00 |
| 27 | 1997 | 12500.00 |
| 28 | 1996 | 12190.00 |
| 29 | 1995 | 12000.00 |
| 30 | 1994 | 9570.00 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|