表を表示
| 1970 | 0.2914 Mt | 1989 | 0.2391 Mt | 2008 | 2.1095 Mt |
| 1971 | 0.2916 Mt | 1990 | 0.2559 Mt | 2009 | 2.6407 Mt |
| 1972 | 0.3104 Mt | 1991 | 0.3128 Mt | 2010 | 2.9614 Mt |
| 1973 | 0.3716 Mt | 1992 | 0.3448 Mt | 2011 | 3.1262 Mt |
| 1974 | 0.454 Mt | 1993 | 0.3628 Mt | 2012 | 3.3357 Mt |
| 1975 | 0.377 Mt | 1994 | 0.4002 Mt | 2013 | 3.9444 Mt |
| 1976 | 0.3717 Mt | 1995 | 0.393 Mt | 2014 | 4.3873 Mt |
| 1977 | 0.392 Mt | 1996 | 0.4606 Mt | 2015 | 8.9275 Mt |
| 1978 | 0.3892 Mt | 1997 | 0.5088 Mt | 2016 | 15.87 Mt |
| 1979 | 0.4176 Mt | 1998 | 0.5458 Mt | 2017 | 19.24 Mt |
| 1980 | 0.449 Mt | 1999 | 0.5286 Mt | 2018 | 19.86 Mt |
| 1981 | 0.1857 Mt | 2000 | 0.9345 Mt | 2019 | 19.37 Mt |
| 1982 | 0.1692 Mt | 2001 | 1.0291 Mt | 2020 | 19.44 Mt |
| 1983 | 0.1817 Mt | 2002 | 1.1544 Mt | 2021 | 23.82 Mt |
| 1984 | 0.1513 Mt | 2003 | 1.2 Mt | 2022 | 24.03 Mt |
| 1985 | 0.1797 Mt | 2004 | 1.258 Mt | 2023 | 25.74 Mt |
| 1986 | 0.193 Mt | 2005 | 1.3026 Mt | 2024 | 26.06 Mt |
| 1987 | 0.2182 Mt | 2006 | 1.7086 Mt | | |
| 1988 | 0.22 Mt | 2007 | 1.806 Mt | | |
表を表示
| 1970 | 0.11 t | 1989 | 0.06 t | 2008 | 0.34 t |
| 1971 | 0.11 t | 1990 | 0.06 t | 2009 | 0.42 t |
| 1972 | 0.11 t | 1991 | 0.07 t | 2010 | 0.47 t |
| 1973 | 0.13 t | 1992 | 0.08 t | 2011 | 0.49 t |
| 1974 | 0.15 t | 1993 | 0.08 t | 2012 | 0.51 t |
| 1975 | 0.13 t | 1994 | 0.08 t | 2013 | 0.6 t |
| 1976 | 0.12 t | 1995 | 0.08 t | 2014 | 0.65 t |
| 1977 | 0.13 t | 1996 | 0.09 t | 2015 | 1.31 t |
| 1978 | 0.12 t | 1997 | 0.1 t | 2016 | 2.3 t |
| 1979 | 0.13 t | 1998 | 0.1 t | 2017 | 2.74 t |
| 1980 | 0.14 t | 1999 | 0.1 t | 2018 | 2.79 t |
| 1981 | 0.06 t | 2000 | 0.17 t | 2019 | 2.68 t |
| 1982 | 0.05 t | 2001 | 0.19 t | 2020 | 2.65 t |
| 1983 | 0.05 t | 2002 | 0.21 t | 2021 | 3.2 t |
| 1984 | 0.04 t | 2003 | 0.21 t | 2022 | 3.18 t |
| 1985 | 0.05 t | 2004 | 0.22 t | 2023 | 3.36 t |
| 1986 | 0.05 t | 2005 | 0.22 t | 2024 | 3.35 t |
| 1987 | 0.06 t | 2006 | 0.29 t | | |
| 1988 | 0.05 t | 2007 | 0.3 t | | |