表を表示
| 1970 | 0.7117 Mt | 1989 | 0.9006 Mt | 2008 | 1.2917 Mt |
| 1971 | 0.7206 Mt | 1990 | 1.0082 Mt | 2009 | 1.0635 Mt |
| 1972 | 0.769 Mt | 1991 | 0.886 Mt | 2010 | 1.6965 Mt |
| 1973 | 0.9152 Mt | 1992 | 0.9929 Mt | 2011 | 1.2454 Mt |
| 1974 | 1.107 Mt | 1993 | 1.0732 Mt | 2012 | 1.2052 Mt |
| 1975 | 0.92 Mt | 1994 | 1.1225 Mt | 2013 | 1.3731 Mt |
| 1976 | 0.9052 Mt | 1995 | 1.1126 Mt | 2014 | 1.5599 Mt |
| 1977 | 0.9594 Mt | 1996 | 1.1642 Mt | 2015 | 1.6172 Mt |
| 1978 | 0.9581 Mt | 1997 | 1.2026 Mt | 2016 | 1.5925 Mt |
| 1979 | 1.026 Mt | 1998 | 1.1921 Mt | 2017 | 1.5406 Mt |
| 1980 | 1.1008 Mt | 1999 | 1.2757 Mt | 2018 | 1.6549 Mt |
| 1981 | 1.1237 Mt | 2000 | 1.4433 Mt | 2019 | 1.619 Mt |
| 1982 | 1.0942 Mt | 2001 | 1.5636 Mt | 2020 | 1.0743 Mt |
| 1983 | 0.9051 Mt | 2002 | 1.2938 Mt | 2021 | 1.3427 Mt |
| 1984 | 0.7546 Mt | 2003 | 1.5253 Mt | 2022 | 1.4343 Mt |
| 1985 | 0.845 Mt | 2004 | 1.979 Mt | 2023 | 1.4378 Mt |
| 1986 | 0.8684 Mt | 2005 | 1.7308 Mt | 2024 | 1.5067 Mt |
| 1987 | 0.7884 Mt | 2006 | 1.8608 Mt | | |
| 1988 | 0.7779 Mt | 2007 | 1.7241 Mt | | |
表を表示
| 1970 | 1.34 t | 1989 | 1.18 t | 2008 | 1.43 t |
| 1971 | 1.33 t | 1990 | 1.3 t | 2009 | 1.17 t |
| 1972 | 1.4 t | 1991 | 1.14 t | 2010 | 1.86 t |
| 1973 | 1.64 t | 1992 | 1.26 t | 2011 | 1.36 t |
| 1974 | 1.95 t | 1993 | 1.36 t | 2012 | 1.32 t |
| 1975 | 1.6 t | 1994 | 1.41 t | 2013 | 1.5 t |
| 1976 | 1.55 t | 1995 | 1.39 t | 2014 | 1.7 t |
| 1977 | 1.6 t | 1996 | 1.45 t | 2015 | 1.76 t |
| 1978 | 1.57 t | 1997 | 1.48 t | 2016 | 1.73 t |
| 1979 | 1.64 t | 1998 | 1.45 t | 2017 | 1.68 t |
| 1980 | 1.71 t | 1999 | 1.53 t | 2018 | 1.8 t |
| 1981 | 1.71 t | 2000 | 1.72 t | 2019 | 1.77 t |
| 1982 | 1.62 t | 2001 | 1.84 t | 2020 | 1.17 t |
| 1983 | 1.31 t | 2002 | 1.51 t | 2021 | 1.46 t |
| 1984 | 1.07 t | 2003 | 1.76 t | 2022 | 1.56 t |
| 1985 | 1.17 t | 2004 | 2.26 t | 2023 | 1.56 t |
| 1986 | 1.17 t | 2005 | 1.96 t | 2024 | 1.62 t |
| 1987 | 1.05 t | 2006 | 2.09 t | | |
| 1988 | 1.03 t | 2007 | 1.92 t | | |