表を表示
| 1970 | 23.56 Mt | 1989 | 73.49 Mt | 2008 | 90.67 Mt |
| 1971 | 27.54 Mt | 1990 | 69.44 Mt | 2009 | 96.85 Mt |
| 1972 | 27.39 Mt | 1991 | 54.45 Mt | 2010 | 111.49 Mt |
| 1973 | 30.06 Mt | 1992 | 75.77 Mt | 2011 | 115.91 Mt |
| 1974 | 32.36 Mt | 1993 | 100.17 Mt | 2012 | 133.04 Mt |
| 1975 | 37.03 Mt | 1994 | 109.95 Mt | 2013 | 144.41 Mt |
| 1976 | 46.46 Mt | 1995 | 109.1 Mt | 2014 | 138.29 Mt |
| 1977 | 42.63 Mt | 1996 | 100.66 Mt | 2015 | 137.9 Mt |
| 1978 | 46.91 Mt | 1997 | 121.12 Mt | 2016 | 155.04 Mt |
| 1979 | 58.09 Mt | 1998 | 94.27 Mt | 2017 | 167.35 Mt |
| 1980 | 52.23 Mt | 1999 | 74.3 Mt | 2018 | 180.94 Mt |
| 1981 | 36.3 Mt | 2000 | 88.81 Mt | 2019 | 193.65 Mt |
| 1982 | 38.52 Mt | 2001 | 100.65 Mt | 2020 | 183.87 Mt |
| 1983 | 42.38 Mt | 2002 | 95.05 Mt | 2021 | 199.71 Mt |
| 1984 | 47.72 Mt | 2003 | 82.89 Mt | 2022 | 222.28 Mt |
| 1985 | 54.72 Mt | 2004 | 90.32 Mt | 2023 | 232.98 Mt |
| 1986 | 61.42 Mt | 2005 | 87.24 Mt | 2024 | 238.67 Mt |
| 1987 | 61.15 Mt | 2006 | 84.86 Mt | | |
| 1988 | 65.81 Mt | 2007 | 78.43 Mt | | |
表を表示
| 1970 | 2.42 t | 1989 | 4.23 t | 2008 | 3.13 t |
| 1971 | 2.73 t | 1990 | 3.95 t | 2009 | 3.22 t |
| 1972 | 2.63 t | 1991 | 3.06 t | 2010 | 3.59 t |
| 1973 | 2.78 t | 1992 | 4.14 t | 2011 | 3.6 t |
| 1974 | 2.9 t | 1993 | 5.22 t | 2012 | 3.95 t |
| 1975 | 3.21 t | 1994 | 5.46 t | 2013 | 4.09 t |
| 1976 | 3.9 t | 1995 | 5.24 t | 2014 | 3.78 t |
| 1977 | 3.46 t | 1996 | 4.68 t | 2015 | 3.67 t |
| 1978 | 3.68 t | 1997 | 5.46 t | 2016 | 4.03 t |
| 1979 | 4.41 t | 1998 | 4.12 t | 2017 | 4.25 t |
| 1980 | 3.84 t | 1999 | 3.14 t | 2018 | 4.49 t |
| 1981 | 2.59 t | 2000 | 3.64 t | 2019 | 4.7 t |
| 1982 | 2.67 t | 2001 | 3.99 t | 2020 | 4.37 t |
| 1983 | 2.86 t | 2002 | 3.65 t | 2021 | 4.64 t |
| 1984 | 3.12 t | 2003 | 3.09 t | 2022 | 5.04 t |
| 1985 | 3.49 t | 2004 | 3.28 t | 2023 | 5.17 t |
| 1986 | 3.82 t | 2005 | 3.07 t | 2024 | 5.18 t |
| 1987 | 3.7 t | 2006 | 2.97 t | | |
| 1988 | 3.89 t | 2007 | 2.76 t | | |