Show data table
| 1970 | 184.9 Mt | 1989 | 240.85 Mt | 2008 | 248.43 Mt |
| 1971 | 184.64 Mt | 1990 | 248.63 Mt | 2009 | 224.48 Mt |
| 1972 | 196.57 Mt | 1991 | 259.93 Mt | 2010 | 242.2 Mt |
| 1973 | 210.03 Mt | 1992 | 265.32 Mt | 2011 | 262.63 Mt |
| 1974 | 218.17 Mt | 1993 | 226.13 Mt | 2012 | 258.81 Mt |
| 1975 | 227.77 Mt | 1994 | 203.89 Mt | 2013 | 276.11 Mt |
| 1976 | 233.84 Mt | 1995 | 180.33 Mt | 2014 | 233.01 Mt |
| 1977 | 237.39 Mt | 1996 | 158.03 Mt | 2015 | 202.75 Mt |
| 1978 | 250.02 Mt | 1997 | 137.31 Mt | 2016 | 216.12 Mt |
| 1979 | 254.69 Mt | 1998 | 141.59 Mt | 2017 | 226.45 Mt |
| 1980 | 263.54 Mt | 1999 | 129.66 Mt | 2018 | 229.38 Mt |
| 1981 | 249.53 Mt | 2000 | 132.22 Mt | 2019 | 218.81 Mt |
| 1982 | 239.24 Mt | 2001 | 130.48 Mt | 2020 | 225.5 Mt |
| 1983 | 234.73 Mt | 2002 | 145.53 Mt | 2021 | 241.91 Mt |
| 1984 | 227.23 Mt | 2003 | 162.15 Mt | 2022 | 246.53 Mt |
| 1985 | 220.41 Mt | 2004 | 174.56 Mt | 2023 | 255.43 Mt |
| 1986 | 221.05 Mt | 2005 | 187.6 Mt | 2024 | 258.8 Mt |
| 1987 | 235.73 Mt | 2006 | 210.19 Mt | | |
| 1988 | 243.8 Mt | 2007 | 219.61 Mt | | |
Show data table
| 1970 | 14.89 t | 1989 | 14.17 t | 2008 | 15.12 t |
| 1971 | 14.56 t | 1990 | 14.49 t | 2009 | 13.51 t |
| 1972 | 15.18 t | 1991 | 15.04 t | 2010 | 14.39 t |
| 1973 | 15.9 t | 1992 | 15.31 t | 2011 | 15.39 t |
| 1974 | 16.22 t | 1993 | 13.09 t | 2012 | 14.95 t |
| 1975 | 16.62 t | 1994 | 11.96 t | 2013 | 15.73 t |
| 1976 | 16.7 t | 1995 | 10.78 t | 2014 | 13.08 t |
| 1977 | 16.54 t | 1996 | 9.63 t | 2015 | 11.21 t |
| 1978 | 17 t | 1997 | 8.56 t | 2016 | 11.77 t |
| 1979 | 17 t | 1998 | 9.05 t | 2017 | 12.14 t |
| 1980 | 17.39 t | 1999 | 8.39 t | 2018 | 12.12 t |
| 1981 | 16.28 t | 2000 | 8.53 t | 2019 | 11.39 t |
| 1982 | 15.44 t | 2001 | 8.38 t | 2020 | 11.57 t |
| 1983 | 14.98 t | 2002 | 9.3 t | 2021 | 12.25 t |
| 1984 | 14.34 t | 2003 | 10.3 t | 2022 | 12.31 t |
| 1985 | 13.75 t | 2004 | 11.01 t | 2023 | 12.56 t |
| 1986 | 13.59 t | 2005 | 11.75 t | 2024 | 12.57 t |
| 1987 | 14.26 t | 2006 | 13.05 t | | |
| 1988 | 14.53 t | 2007 | 13.51 t | | |