Show data table
| 1970 | 1.221 Mt | 1989 | 2.4993 Mt | 2008 | 8.6651 Mt |
| 1971 | 1.2213 Mt | 1990 | 2.3604 Mt | 2009 | 8.1702 Mt |
| 1972 | 1.2732 Mt | 1991 | 2.3774 Mt | 2010 | 7.9832 Mt |
| 1973 | 1.4011 Mt | 1992 | 2.6744 Mt | 2011 | 9.491 Mt |
| 1974 | 1.3743 Mt | 1993 | 2.8039 Mt | 2012 | 9.9296 Mt |
| 1975 | 1.4802 Mt | 1994 | 3.2016 Mt | 2013 | 10.12 Mt |
| 1976 | 1.556 Mt | 1995 | 3.782 Mt | 2014 | 9.9347 Mt |
| 1977 | 1.6896 Mt | 1996 | 4.0085 Mt | 2015 | 10.82 Mt |
| 1978 | 1.7067 Mt | 1997 | 4.1178 Mt | 2016 | 9.7321 Mt |
| 1979 | 1.8073 Mt | 1998 | 4.7681 Mt | 2017 | 9.3472 Mt |
| 1980 | 1.8682 Mt | 1999 | 4.8314 Mt | 2018 | 9.0061 Mt |
| 1981 | 1.7825 Mt | 2000 | 5.0003 Mt | 2019 | 10.15 Mt |
| 1982 | 1.7531 Mt | 2001 | 5.8868 Mt | 2020 | 9.222 Mt |
| 1983 | 2.0157 Mt | 2002 | 6.2176 Mt | 2021 | 10.37 Mt |
| 1984 | 2.0639 Mt | 2003 | 6.8829 Mt | 2022 | 10.57 Mt |
| 1985 | 1.8622 Mt | 2004 | 7.8297 Mt | 2023 | 11.85 Mt |
| 1986 | 1.8977 Mt | 2005 | 7.0955 Mt | 2024 | 12.29 Mt |
| 1987 | 2.1036 Mt | 2006 | 8.1471 Mt | | |
| 1988 | 2.2516 Mt | 2007 | 8.667 Mt | | |
Show data table
| 1970 | 0.44 t | 1989 | 0.52 t | 2008 | 1.08 t |
| 1971 | 0.43 t | 1990 | 0.47 t | 2009 | 1 t |
| 1972 | 0.44 t | 1991 | 0.46 t | 2010 | 0.95 t |
| 1973 | 0.47 t | 1992 | 0.51 t | 2011 | 1.11 t |
| 1974 | 0.44 t | 1993 | 0.52 t | 2012 | 1.14 t |
| 1975 | 0.46 t | 1994 | 0.57 t | 2013 | 1.14 t |
| 1976 | 0.47 t | 1995 | 0.66 t | 2014 | 1.1 t |
| 1977 | 0.5 t | 1996 | 0.68 t | 2015 | 1.17 t |
| 1978 | 0.49 t | 1997 | 0.68 t | 2016 | 1.03 t |
| 1979 | 0.5 t | 1998 | 0.76 t | 2017 | 0.97 t |
| 1980 | 0.5 t | 1999 | 0.75 t | 2018 | 0.92 t |
| 1981 | 0.46 t | 2000 | 0.76 t | 2019 | 1.02 t |
| 1982 | 0.44 t | 2001 | 0.87 t | 2020 | 0.91 t |
| 1983 | 0.49 t | 2002 | 0.9 t | 2021 | 1.01 t |
| 1984 | 0.49 t | 2003 | 0.97 t | 2022 | 1.01 t |
| 1985 | 0.43 t | 2004 | 1.07 t | 2023 | 1.11 t |
| 1986 | 0.43 t | 2005 | 0.95 t | 2024 | 1.14 t |
| 1987 | 0.46 t | 2006 | 1.06 t | | |
| 1988 | 0.48 t | 2007 | 1.11 t | | |