表を表示
| 1970 | 5.4315 Mt | 1989 | 5.9745 Mt | 2008 | 18.31 Mt |
| 1971 | 5.504 Mt | 1990 | 5.9745 Mt | 2009 | 21.56 Mt |
| 1972 | 6.0128 Mt | 1991 | 7.4107 Mt | 2010 | 20.66 Mt |
| 1973 | 7.413 Mt | 1992 | 7.9604 Mt | 2011 | 20.98 Mt |
| 1974 | 7.5322 Mt | 1993 | 11.4 Mt | 2012 | 23.44 Mt |
| 1975 | 6.7109 Mt | 1994 | 12.53 Mt | 2013 | 23.1 Mt |
| 1976 | 6.3015 Mt | 1995 | 14.52 Mt | 2014 | 24.97 Mt |
| 1977 | 5.477 Mt | 1996 | 15.08 Mt | 2015 | 26.91 Mt |
| 1978 | 6.6277 Mt | 1997 | 16.56 Mt | 2016 | 27.87 Mt |
| 1979 | 7.4506 Mt | 1998 | 16.45 Mt | 2017 | 29.3 Mt |
| 1980 | 7.5346 Mt | 1999 | 16.95 Mt | 2018 | 27.49 Mt |
| 1981 | 7.6244 Mt | 2000 | 15.31 Mt | 2019 | 27 Mt |
| 1982 | 5.6155 Mt | 2001 | 16.52 Mt | 2020 | 21.82 Mt |
| 1983 | 5.9904 Mt | 2002 | 16.47 Mt | 2021 | 16.71 Mt |
| 1984 | 6.121 Mt | 2003 | 16.47 Mt | 2022 | 10.44 Mt |
| 1985 | 7.1238 Mt | 2004 | 16.69 Mt | 2023 | 10.82 Mt |
| 1986 | 7.5219 Mt | 2005 | 16.58 Mt | 2024 | 11 Mt |
| 1987 | 7.6919 Mt | 2006 | 16.13 Mt | | |
| 1988 | 5.9334 Mt | 2007 | 14.95 Mt | | |
表を表示
| 1970 | 2.28 t | 1989 | 1.69 t | 2008 | 3.72 t |
| 1971 | 2.25 t | 1990 | 1.66 t | 2009 | 4.32 t |
| 1972 | 2.4 t | 1991 | 2.02 t | 2010 | 4.1 t |
| 1973 | 2.88 t | 1992 | 2.12 t | 2011 | 4.12 t |
| 1974 | 2.86 t | 1993 | 2.98 t | 2012 | 4.48 t |
| 1975 | 2.49 t | 1994 | 3.22 t | 2013 | 4.02 t |
| 1976 | 2.31 t | 1995 | 3.67 t | 2014 | 3.93 t |
| 1977 | 1.98 t | 1996 | 3.74 t | 2015 | 4.16 t |
| 1978 | 2.35 t | 1997 | 4.03 t | 2016 | 4.41 t |
| 1979 | 2.58 t | 1998 | 3.93 t | 2017 | 4.76 t |
| 1980 | 2.56 t | 1999 | 3.98 t | 2018 | 4.59 t |
| 1981 | 2.53 t | 2000 | 3.54 t | 2019 | 4.66 t |
| 1982 | 1.84 t | 2001 | 3.75 t | 2020 | 3.83 t |
| 1983 | 1.94 t | 2002 | 3.69 t | 2021 | 2.92 t |
| 1984 | 1.94 t | 2003 | 3.64 t | 2022 | 1.82 t |
| 1985 | 2.21 t | 2004 | 3.63 t | 2023 | 1.87 t |
| 1986 | 2.28 t | 2005 | 3.55 t | 2024 | 1.9 t |
| 1987 | 2.27 t | 2006 | 3.4 t | | |
| 1988 | 1.72 t | 2007 | 3.09 t | | |