表を表示
| 1970 | 17.86 Mt | 1989 | 63.47 Mt | 2008 | 156.38 Mt |
| 1971 | 18.09 Mt | 1990 | 65.64 Mt | 2009 | 160.08 Mt |
| 1972 | 18.84 Mt | 1991 | 68.13 Mt | 2010 | 155.66 Mt |
| 1973 | 20.05 Mt | 1992 | 74.91 Mt | 2011 | 155.24 Mt |
| 1974 | 21.28 Mt | 1993 | 83.29 Mt | 2012 | 157.11 Mt |
| 1975 | 23.58 Mt | 1994 | 85.59 Mt | 2013 | 160.8 Mt |
| 1976 | 22.5 Mt | 1995 | 91.87 Mt | 2014 | 169.2 Mt |
| 1977 | 23.93 Mt | 1996 | 96.17 Mt | 2015 | 178.28 Mt |
| 1978 | 25.13 Mt | 1997 | 99.11 Mt | 2016 | 196.8 Mt |
| 1979 | 27.12 Mt | 1998 | 100.06 Mt | 2017 | 213.3 Mt |
| 1980 | 29.03 Mt | 1999 | 109.58 Mt | 2018 | 202.31 Mt |
| 1981 | 31.61 Mt | 2000 | 111.89 Mt | 2019 | 198.84 Mt |
| 1982 | 35.5 Mt | 2001 | 113.98 Mt | 2020 | 222.6 Mt |
| 1983 | 37.88 Mt | 2002 | 113.33 Mt | 2021 | 229.14 Mt |
| 1984 | 39.87 Mt | 2003 | 117.5 Mt | 2022 | 235.37 Mt |
| 1985 | 43.94 Mt | 2004 | 131.44 Mt | 2023 | 208.89 Mt |
| 1986 | 47.15 Mt | 2005 | 133.92 Mt | 2024 | 203.99 Mt |
| 1987 | 54.54 Mt | 2006 | 145.31 Mt | | |
| 1988 | 58.72 Mt | 2007 | 161.96 Mt | | |
表を表示
| 1970 | 0.3 t | 1989 | 0.56 t | 2008 | 0.83 t |
| 1971 | 0.29 t | 1990 | 0.57 t | 2009 | 0.82 t |
| 1972 | 0.3 t | 1991 | 0.57 t | 2010 | 0.78 t |
| 1973 | 0.31 t | 1992 | 0.61 t | 2011 | 0.76 t |
| 1974 | 0.32 t | 1993 | 0.66 t | 2012 | 0.76 t |
| 1975 | 0.34 t | 1994 | 0.65 t | 2013 | 0.76 t |
| 1976 | 0.31 t | 1995 | 0.68 t | 2014 | 0.79 t |
| 1977 | 0.32 t | 1996 | 0.69 t | 2015 | 0.82 t |
| 1978 | 0.33 t | 1997 | 0.7 t | 2016 | 0.89 t |
| 1979 | 0.34 t | 1998 | 0.68 t | 2017 | 0.96 t |
| 1980 | 0.35 t | 1999 | 0.73 t | 2018 | 0.89 t |
| 1981 | 0.37 t | 2000 | 0.72 t | 2019 | 0.86 t |
| 1982 | 0.4 t | 2001 | 0.72 t | 2020 | 0.95 t |
| 1983 | 0.41 t | 2002 | 0.69 t | 2021 | 0.96 t |
| 1984 | 0.42 t | 2003 | 0.7 t | 2022 | 0.97 t |
| 1985 | 0.45 t | 2004 | 0.77 t | 2023 | 0.84 t |
| 1986 | 0.46 t | 2005 | 0.76 t | 2024 | 0.81 t |
| 1987 | 0.52 t | 2006 | 0.81 t | | |
| 1988 | 0.54 t | 2007 | 0.88 t | | |