表を表示
| 1970 | 2.6158 Mt | 1989 | 3.2792 Mt | 2008 | 6.9185 Mt |
| 1971 | 2.6676 Mt | 1990 | 2.9721 Mt | 2009 | 6.4113 Mt |
| 1972 | 2.9649 Mt | 1991 | 3.0648 Mt | 2010 | 7.3149 Mt |
| 1973 | 3.0499 Mt | 1992 | 3.0521 Mt | 2011 | 7.0784 Mt |
| 1974 | 3.1332 Mt | 1993 | 3.2383 Mt | 2012 | 9.0202 Mt |
| 1975 | 3.4029 Mt | 1994 | 3.3846 Mt | 2013 | 9.801 Mt |
| 1976 | 3.8887 Mt | 1995 | 3.703 Mt | 2014 | 10.46 Mt |
| 1977 | 3.857 Mt | 1996 | 4.6321 Mt | 2015 | 11.27 Mt |
| 1978 | 4.4631 Mt | 1997 | 5.639 Mt | 2016 | 11.4 Mt |
| 1979 | 4.1629 Mt | 1998 | 5.4647 Mt | 2017 | 12.33 Mt |
| 1980 | 3.9601 Mt | 1999 | 7.2972 Mt | 2018 | 12.34 Mt |
| 1981 | 3.6247 Mt | 2000 | 6.9672 Mt | 2019 | 13.18 Mt |
| 1982 | 3.4455 Mt | 2001 | 6.987 Mt | 2020 | 13.29 Mt |
| 1983 | 4.0555 Mt | 2002 | 7.3874 Mt | 2021 | 17.2 Mt |
| 1984 | 3.6146 Mt | 2003 | 5.8144 Mt | 2022 | 18.41 Mt |
| 1985 | 3.3124 Mt | 2004 | 5.9957 Mt | 2023 | 17.93 Mt |
| 1986 | 3.4591 Mt | 2005 | 6.3955 Mt | 2024 | 18.81 Mt |
| 1987 | 3.3756 Mt | 2006 | 6.2787 Mt | | |
| 1988 | 3.4132 Mt | 2007 | 6.2349 Mt | | |
表を表示
| 1970 | 0.48 t | 1989 | 0.28 t | 2008 | 0.32 t |
| 1971 | 0.47 t | 1990 | 0.24 t | 2009 | 0.29 t |
| 1972 | 0.5 t | 1991 | 0.24 t | 2010 | 0.33 t |
| 1973 | 0.49 t | 1992 | 0.23 t | 2011 | 0.31 t |
| 1974 | 0.48 t | 1993 | 0.24 t | 2012 | 0.38 t |
| 1975 | 0.5 t | 1994 | 0.24 t | 2013 | 0.41 t |
| 1976 | 0.55 t | 1995 | 0.25 t | 2014 | 0.43 t |
| 1977 | 0.53 t | 1996 | 0.3 t | 2015 | 0.45 t |
| 1978 | 0.59 t | 1997 | 0.35 t | 2016 | 0.44 t |
| 1979 | 0.53 t | 1998 | 0.33 t | 2017 | 0.46 t |
| 1980 | 0.48 t | 1999 | 0.42 t | 2018 | 0.45 t |
| 1981 | 0.42 t | 2000 | 0.39 t | 2019 | 0.47 t |
| 1982 | 0.39 t | 2001 | 0.38 t | 2020 | 0.46 t |
| 1983 | 0.44 t | 2002 | 0.4 t | 2021 | 0.58 t |
| 1984 | 0.37 t | 2003 | 0.3 t | 2022 | 0.61 t |
| 1985 | 0.33 t | 2004 | 0.31 t | 2023 | 0.58 t |
| 1986 | 0.33 t | 2005 | 0.32 t | 2024 | 0.59 t |
| 1987 | 0.31 t | 2006 | 0.31 t | | |
| 1988 | 0.3 t | 2007 | 0.3 t | | |