Show data table
| 1970 | 19.69 Mt | 1989 | 73.19 Mt | 2008 | 113.71 Mt |
| 1971 | 23.01 Mt | 1990 | 72.16 Mt | 2009 | 116.09 Mt |
| 1972 | 35.15 Mt | 1991 | 75.19 Mt | 2010 | 118.62 Mt |
| 1973 | 47.3 Mt | 1992 | 84.78 Mt | 2011 | 124.8 Mt |
| 1974 | 39.9 Mt | 1993 | 82.97 Mt | 2012 | 140.27 Mt |
| 1975 | 36.41 Mt | 1994 | 81.15 Mt | 2013 | 145.73 Mt |
| 1976 | 47.07 Mt | 1995 | 83.82 Mt | 2014 | 155.03 Mt |
| 1977 | 52.15 Mt | 1996 | 81.51 Mt | 2015 | 164.58 Mt |
| 1978 | 57.35 Mt | 1997 | 79.62 Mt | 2016 | 160.75 Mt |
| 1979 | 57.42 Mt | 1998 | 81.44 Mt | 2017 | 166.32 Mt |
| 1980 | 57.2 Mt | 1999 | 84.96 Mt | 2018 | 174.81 Mt |
| 1981 | 54 Mt | 2000 | 87.94 Mt | 2019 | 181.69 Mt |
| 1982 | 56.86 Mt | 2001 | 85.82 Mt | 2020 | 171.95 Mt |
| 1983 | 59.19 Mt | 2002 | 89.69 Mt | 2021 | 181.32 Mt |
| 1984 | 62.36 Mt | 2003 | 96.51 Mt | 2022 | 189.19 Mt |
| 1985 | 71.68 Mt | 2004 | 96.63 Mt | 2023 | 190.58 Mt |
| 1986 | 74.95 Mt | 2005 | 101.4 Mt | 2024 | 186.36 Mt |
| 1987 | 72.23 Mt | 2006 | 105.5 Mt | | |
| 1988 | 72.94 Mt | 2007 | 108.92 Mt | | |
Show data table
| 1970 | 1.43 t | 1989 | 2.96 t | 2008 | 3.27 t |
| 1971 | 1.63 t | 1990 | 2.84 t | 2009 | 3.27 t |
| 1972 | 2.44 t | 1991 | 2.89 t | 2010 | 3.28 t |
| 1973 | 3.2 t | 1992 | 3.18 t | 2011 | 3.38 t |
| 1974 | 2.64 t | 1993 | 3.04 t | 2012 | 3.73 t |
| 1975 | 2.32 t | 1994 | 2.91 t | 2013 | 3.79 t |
| 1976 | 2.87 t | 1995 | 2.94 t | 2014 | 3.95 t |
| 1977 | 3.06 t | 1996 | 2.81 t | 2015 | 4.11 t |
| 1978 | 3.28 t | 1997 | 2.69 t | 2016 | 3.93 t |
| 1979 | 3.18 t | 1998 | 2.71 t | 2017 | 3.99 t |
| 1980 | 3.07 t | 1999 | 2.79 t | 2018 | 4.11 t |
| 1981 | 2.81 t | 2000 | 2.85 t | 2019 | 4.2 t |
| 1982 | 2.86 t | 2001 | 2.74 t | 2020 | 3.9 t |
| 1983 | 2.88 t | 2002 | 2.82 t | 2021 | 4.05 t |
| 1984 | 2.93 t | 2003 | 3 t | 2022 | 4.16 t |
| 1985 | 3.26 t | 2004 | 2.96 t | 2023 | 4.13 t |
| 1986 | 3.3 t | 2005 | 3.06 t | 2024 | 3.98 t |
| 1987 | 3.08 t | 2006 | 3.14 t | | |
| 1988 | 3.03 t | 2007 | 3.19 t | | |