Show data table
| 1970 | 28.85 Mt | 1989 | 51.15 Mt | 2008 | 61.2 Mt |
| 1971 | 29.15 Mt | 1990 | 53.2 Mt | 2009 | 65.32 Mt |
| 1972 | 29.88 Mt | 1991 | 55.03 Mt | 2010 | 68.15 Mt |
| 1973 | 30.82 Mt | 1992 | 58.33 Mt | 2011 | 73.17 Mt |
| 1974 | 31.93 Mt | 1993 | 61.66 Mt | 2012 | 73.6 Mt |
| 1975 | 34.33 Mt | 1994 | 61.31 Mt | 2013 | 83.63 Mt |
| 1976 | 36.63 Mt | 1995 | 63.99 Mt | 2014 | 84.92 Mt |
| 1977 | 37.61 Mt | 1996 | 63.18 Mt | 2015 | 86.22 Mt |
| 1978 | 40.12 Mt | 1997 | 68.36 Mt | 2016 | 88.49 Mt |
| 1979 | 40.34 Mt | 1998 | 68.74 Mt | 2017 | 81 Mt |
| 1980 | 41.08 Mt | 1999 | 60.24 Mt | 2018 | 85.4 Mt |
| 1981 | 41.59 Mt | 2000 | 63.42 Mt | 2019 | 86.06 Mt |
| 1982 | 42.19 Mt | 2001 | 63.03 Mt | 2020 | 84.3 Mt |
| 1983 | 44.27 Mt | 2002 | 60.59 Mt | 2021 | 92.17 Mt |
| 1984 | 45.01 Mt | 2003 | 60.05 Mt | 2022 | 88.34 Mt |
| 1985 | 46.56 Mt | 2004 | 60.09 Mt | 2023 | 92.8 Mt |
| 1986 | 47.08 Mt | 2005 | 61.89 Mt | 2024 | 95.08 Mt |
| 1987 | 49.1 Mt | 2006 | 59.05 Mt | | |
| 1988 | 49.61 Mt | 2007 | 61.24 Mt | | |
Show data table
| 1970 | 1.39 t | 1989 | 1.61 t | 2008 | 1.4 t |
| 1971 | 1.37 t | 1990 | 1.64 t | 2009 | 1.48 t |
| 1972 | 1.37 t | 1991 | 1.66 t | 2010 | 1.52 t |
| 1973 | 1.38 t | 1992 | 1.73 t | 2011 | 1.62 t |
| 1974 | 1.4 t | 1993 | 1.79 t | 2012 | 1.61 t |
| 1975 | 1.47 t | 1994 | 1.75 t | 2013 | 1.81 t |
| 1976 | 1.54 t | 1995 | 1.79 t | 2014 | 1.82 t |
| 1977 | 1.54 t | 1996 | 1.73 t | 2015 | 1.84 t |
| 1978 | 1.61 t | 1997 | 1.84 t | 2016 | 1.87 t |
| 1979 | 1.58 t | 1998 | 1.82 t | 2017 | 1.68 t |
| 1980 | 1.57 t | 1999 | 1.57 t | 2018 | 1.74 t |
| 1981 | 1.56 t | 2000 | 1.62 t | 2019 | 1.72 t |
| 1982 | 1.54 t | 2001 | 1.59 t | 2020 | 1.67 t |
| 1983 | 1.58 t | 2002 | 1.5 t | 2021 | 1.8 t |
| 1984 | 1.57 t | 2003 | 1.47 t | 2022 | 1.71 t |
| 1985 | 1.59 t | 2004 | 1.45 t | 2023 | 1.77 t |
| 1986 | 1.58 t | 2005 | 1.47 t | 2024 | 1.8 t |
| 1987 | 1.61 t | 2006 | 1.38 t | | |
| 1988 | 1.59 t | 2007 | 1.42 t | | |