Show data table
| 1970 | 120.9 Mt | 1989 | 293.3 Mt | 2008 | 472.3 Mt |
| 1971 | 121.3 Mt | 1990 | 289.66 Mt | 2009 | 461.58 Mt |
| 1972 | 133.38 Mt | 1991 | 307.49 Mt | 2010 | 476.94 Mt |
| 1973 | 143.51 Mt | 1992 | 311.2 Mt | 2011 | 486.54 Mt |
| 1974 | 158.32 Mt | 1993 | 320.35 Mt | 2012 | 506.23 Mt |
| 1975 | 166.62 Mt | 1994 | 346.17 Mt | 2013 | 494.02 Mt |
| 1976 | 177.78 Mt | 1995 | 326.26 Mt | 2014 | 480.91 Mt |
| 1977 | 183.83 Mt | 1996 | 341.91 Mt | 2015 | 490.43 Mt |
| 1978 | 206.06 Mt | 1997 | 360.73 Mt | 2016 | 496.47 Mt |
| 1979 | 217.97 Mt | 1998 | 384.01 Mt | 2017 | 500.69 Mt |
| 1980 | 241.04 Mt | 1999 | 373.1 Mt | 2018 | 478.15 Mt |
| 1981 | 259.22 Mt | 2000 | 396.74 Mt | 2019 | 493.67 Mt |
| 1982 | 277.73 Mt | 2001 | 394.79 Mt | 2020 | 439.04 Mt |
| 1983 | 261.41 Mt | 2002 | 400.95 Mt | 2021 | 452.72 Mt |
| 1984 | 265.13 Mt | 2003 | 420.71 Mt | 2022 | 452.95 Mt |
| 1985 | 274.36 Mt | 2004 | 430.46 Mt | 2023 | 475.6 Mt |
| 1986 | 269.98 Mt | 2005 | 447.33 Mt | 2024 | 475.99 Mt |
| 1987 | 281.37 Mt | 2006 | 463.95 Mt | | |
| 1988 | 280.01 Mt | 2007 | 470.88 Mt | | |
Show data table
| 1970 | 2.38 t | 1989 | 3.61 t | 2008 | 4.28 t |
| 1971 | 2.31 t | 1990 | 3.5 t | 2009 | 4.12 t |
| 1972 | 2.47 t | 1991 | 3.64 t | 2010 | 4.2 t |
| 1973 | 2.58 t | 1992 | 3.62 t | 2011 | 4.22 t |
| 1974 | 2.76 t | 1993 | 3.65 t | 2012 | 4.33 t |
| 1975 | 2.82 t | 1994 | 3.88 t | 2013 | 4.17 t |
| 1976 | 2.93 t | 1995 | 3.59 t | 2014 | 4.01 t |
| 1977 | 2.95 t | 1996 | 3.7 t | 2015 | 4.05 t |
| 1978 | 3.22 t | 1997 | 3.84 t | 2016 | 4.06 t |
| 1979 | 3.32 t | 1998 | 4.02 t | 2017 | 4.06 t |
| 1980 | 3.58 t | 1999 | 3.84 t | 2018 | 3.84 t |
| 1981 | 3.76 t | 2000 | 4.02 t | 2019 | 3.93 t |
| 1982 | 3.94 t | 2001 | 3.94 t | 2020 | 3.46 t |
| 1983 | 3.63 t | 2002 | 3.95 t | 2021 | 3.55 t |
| 1984 | 3.61 t | 2003 | 4.09 t | 2022 | 3.52 t |
| 1985 | 3.66 t | 2004 | 4.12 t | 2023 | 3.67 t |
| 1986 | 3.53 t | 2005 | 4.23 t | 2024 | 3.64 t |
| 1987 | 3.6 t | 2006 | 4.33 t | | |
| 1988 | 3.51 t | 2007 | 4.33 t | | |