表を表示
| 1970 | 4.8451 Mt | 1989 | 7.9061 Mt | 2008 | 4.195 Mt |
| 1971 | 4.8382 Mt | 1990 | 6.6451 Mt | 2009 | 4.2836 Mt |
| 1972 | 5.5184 Mt | 1991 | 4.3796 Mt | 2010 | 4.567 Mt |
| 1973 | 4.952 Mt | 1992 | 2.3632 Mt | 2011 | 5.0007 Mt |
| 1974 | 5.3297 Mt | 1993 | 2.2228 Mt | 2012 | 4.5385 Mt |
| 1975 | 5.4242 Mt | 1994 | 2.3443 Mt | 2013 | 4.7703 Mt |
| 1976 | 5.7967 Mt | 1995 | 2.0702 Mt | 2014 | 5.1022 Mt |
| 1977 | 6.201 Mt | 1996 | 2.0552 Mt | 2015 | 4.8756 Mt |
| 1978 | 6.8211 Mt | 1997 | 1.5806 Mt | 2016 | 4.5382 Mt |
| 1979 | 7.9368 Mt | 1998 | 1.9149 Mt | 2017 | 5.3613 Mt |
| 1980 | 8.0566 Mt | 1999 | 3.0869 Mt | 2018 | 5.3341 Mt |
| 1981 | 7.0727 Mt | 2000 | 3.2329 Mt | 2019 | 4.984 Mt |
| 1982 | 7.2731 Mt | 2001 | 3.4396 Mt | 2020 | 4.5676 Mt |
| 1983 | 7.7923 Mt | 2002 | 4.0067 Mt | 2021 | 5.1122 Mt |
| 1984 | 8.4313 Mt | 2003 | 4.2116 Mt | 2022 | 4.5239 Mt |
| 1985 | 8.0741 Mt | 2004 | 4.4144 Mt | 2023 | 4.2226 Mt |
| 1986 | 8.1515 Mt | 2005 | 4.1489 Mt | 2024 | 4.2437 Mt |
| 1987 | 8.2928 Mt | 2006 | 4.1351 Mt | | |
| 1988 | 8.1997 Mt | 2007 | 4.246 Mt | | |
表を表示
| 1970 | 2.27 t | 1989 | 2.45 t | 2008 | 1.42 t |
| 1971 | 2.21 t | 1990 | 2.02 t | 2009 | 1.46 t |
| 1972 | 2.46 t | 1991 | 1.34 t | 2010 | 1.57 t |
| 1973 | 2.16 t | 1992 | 0.73 t | 2011 | 1.72 t |
| 1974 | 2.27 t | 1993 | 0.69 t | 2012 | 1.59 t |
| 1975 | 2.26 t | 1994 | 0.73 t | 2013 | 1.69 t |
| 1976 | 2.36 t | 1995 | 0.65 t | 2014 | 1.84 t |
| 1977 | 2.47 t | 1996 | 0.65 t | 2015 | 1.79 t |
| 1978 | 2.66 t | 1997 | 0.5 t | 2016 | 1.69 t |
| 1979 | 3.03 t | 1998 | 0.61 t | 2017 | 2.02 t |
| 1980 | 3.02 t | 1999 | 0.99 t | 2018 | 2.05 t |
| 1981 | 2.59 t | 2000 | 1.05 t | 2019 | 1.94 t |
| 1982 | 2.61 t | 2001 | 1.12 t | 2020 | 1.81 t |
| 1983 | 2.74 t | 2002 | 1.31 t | 2021 | 2.05 t |
| 1984 | 2.9 t | 2003 | 1.39 t | 2022 | 1.85 t |
| 1985 | 2.72 t | 2004 | 1.46 t | 2023 | 1.75 t |
| 1986 | 2.7 t | 2005 | 1.38 t | 2024 | 1.79 t |
| 1987 | 2.69 t | 2006 | 1.38 t | | |
| 1988 | 2.61 t | 2007 | 1.43 t | | |