表を表示
| 1970 | 9.5321 Mt | 1989 | 15.52 Mt | 2008 | 8.3091 Mt |
| 1971 | 9.4795 Mt | 1990 | 17.41 Mt | 2009 | 7.9434 Mt |
| 1972 | 9.0937 Mt | 1991 | 19.16 Mt | 2010 | 10.07 Mt |
| 1973 | 10.55 Mt | 1992 | 19.2 Mt | 2011 | 15.85 Mt |
| 1974 | 10.4 Mt | 1993 | 17.67 Mt | 2012 | 12.74 Mt |
| 1975 | 9.1708 Mt | 1994 | 16.55 Mt | 2013 | 12.72 Mt |
| 1976 | 10.05 Mt | 1995 | 16.27 Mt | 2014 | 12.6 Mt |
| 1977 | 9.0224 Mt | 1996 | 15.72 Mt | 2015 | 12.69 Mt |
| 1978 | 8.9052 Mt | 1997 | 14.76 Mt | 2016 | 11.27 Mt |
| 1979 | 9.191 Mt | 1998 | 14.97 Mt | 2017 | 10.59 Mt |
| 1980 | 9.7973 Mt | 1999 | 16.85 Mt | 2018 | 12.27 Mt |
| 1981 | 9.3963 Mt | 2000 | 14.66 Mt | 2019 | 11.17 Mt |
| 1982 | 9.0345 Mt | 2001 | 14.6 Mt | 2020 | 9.0746 Mt |
| 1983 | 8.9446 Mt | 2002 | 13.33 Mt | 2021 | 10.88 Mt |
| 1984 | 9.3904 Mt | 2003 | 10.93 Mt | 2022 | 11.56 Mt |
| 1985 | 10.87 Mt | 2004 | 10.37 Mt | 2023 | 12.57 Mt |
| 1986 | 12.42 Mt | 2005 | 11.51 Mt | 2024 | 12.86 Mt |
| 1987 | 15.81 Mt | 2006 | 10.73 Mt | | |
| 1988 | 15.33 Mt | 2007 | 10.57 Mt | | |
表を表示
| 1970 | 1.83 t | 1989 | 1.57 t | 2008 | 0.64 t |
| 1971 | 1.76 t | 1990 | 1.72 t | 2009 | 0.6 t |
| 1972 | 1.64 t | 1991 | 1.84 t | 2010 | 0.75 t |
| 1973 | 1.85 t | 1992 | 1.79 t | 2011 | 1.17 t |
| 1974 | 1.76 t | 1993 | 1.63 t | 2012 | 0.92 t |
| 1975 | 1.5 t | 1994 | 1.52 t | 2013 | 0.91 t |
| 1976 | 1.6 t | 1995 | 1.48 t | 2014 | 0.89 t |
| 1977 | 1.4 t | 1996 | 1.41 t | 2015 | 0.88 t |
| 1978 | 1.36 t | 1997 | 1.3 t | 2016 | 0.77 t |
| 1979 | 1.38 t | 1998 | 1.29 t | 2017 | 0.71 t |
| 1980 | 1.39 t | 1999 | 1.43 t | 2018 | 0.82 t |
| 1981 | 1.25 t | 2000 | 1.23 t | 2019 | 0.73 t |
| 1982 | 1.16 t | 2001 | 1.22 t | 2020 | 0.58 t |
| 1983 | 1.1 t | 2002 | 1.1 t | 2021 | 0.69 t |
| 1984 | 1.12 t | 2003 | 0.89 t | 2022 | 0.72 t |
| 1985 | 1.25 t | 2004 | 0.84 t | 2023 | 0.77 t |
| 1986 | 1.38 t | 2005 | 0.92 t | 2024 | 0.77 t |
| 1987 | 1.7 t | 2006 | 0.85 t | | |
| 1988 | 1.6 t | 2007 | 0.83 t | | |