| 年份 | 天然石墨出口金额(百万美元) |
|---|---|
| 1978 | - |
| 1979 | - |
| 1980 | - |
| 1981 | - |
| 1982 | - |
| 1983 | - |
| 1984 | - |
| 1985 | - |
| 1986 | - |
| 1987 | - |
| 1988 | - |
| 1989 | - |
| 1990 | - |
| 1991 | - |
| 1992 | - |
| 1993 | - |
| 1994 | - |
| 1995 | - |
| 1996 | 41.21 |
| 1997 | 43.43 |
| 1998 | 42.84 |
| 1999 | 36.76 |
| 2000 | 50.97 |
| 2001 | 48.50 |
| 2002 | 46.14 |
| 2003 | 53.52 |
| 2004 | 67.04 |
| 2005 | 85.45 |
| 2006 | 78.07 |
| 2007 | 103.23 |
| 2008 | 163.98 |
| 2009 | 134.12 |
| 2010 | 207.19 |
| 2011 | 365.18 |
| 2012 | 286.46 |
| 2013 | 276.58 |
| 2014 | 298.11 |
| 2015 | 246.37 |
| 2016 | 228.48 |
| 2017 | 265.70 |
| 2018 | 348.33 |
| 2019 | 326.10 |
| 2020 | - |
| 2021 | - |
| 2022 | - |
| 2023 | - |
| 2024 | - |
| 2025 | - |