表を表示
| 1970 | 41.35 Mt | 1989 | 43.6 Mt | 2008 | 45.98 Mt |
| 1971 | 43.31 Mt | 1990 | 44.76 Mt | 2009 | 44.62 Mt |
| 1972 | 44.02 Mt | 1991 | 47.07 Mt | 2010 | 46.32 Mt |
| 1973 | 47.65 Mt | 1992 | 47.03 Mt | 2011 | 42.29 Mt |
| 1974 | 42.96 Mt | 1993 | 44.72 Mt | 2012 | 43.6 Mt |
| 1975 | 40.55 Mt | 1994 | 43.79 Mt | 2013 | 44.61 Mt |
| 1976 | 42.24 Mt | 1995 | 44.58 Mt | 2014 | 40.9 Mt |
| 1977 | 42.66 Mt | 1996 | 45.13 Mt | 2015 | 40.22 Mt |
| 1978 | 43.86 Mt | 1997 | 43.83 Mt | 2016 | 40.79 Mt |
| 1979 | 42.54 Mt | 1998 | 45.3 Mt | 2017 | 39.82 Mt |
| 1980 | 43.3 Mt | 1999 | 45.56 Mt | 2018 | 38.52 Mt |
| 1981 | 40.93 Mt | 2000 | 44.76 Mt | 2019 | 38.4 Mt |
| 1982 | 38.71 Mt | 2001 | 46.19 Mt | 2020 | 35.94 Mt |
| 1983 | 42.81 Mt | 2002 | 44.58 Mt | 2021 | 37.63 Mt |
| 1984 | 42.31 Mt | 2003 | 45.86 Mt | 2022 | 34.48 Mt |
| 1985 | 45.51 Mt | 2004 | 46.4 Mt | 2023 | 33.67 Mt |
| 1986 | 45.42 Mt | 2005 | 47.03 Mt | 2024 | 33.73 Mt |
| 1987 | 43.83 Mt | 2006 | 46.61 Mt | | |
| 1988 | 43.79 Mt | 2007 | 44.62 Mt | | |
表を表示
| 1970 | 6.69 t | 1989 | 6.56 t | 2008 | 6.01 t |
| 1971 | 6.97 t | 1990 | 6.66 t | 2009 | 5.76 t |
| 1972 | 7.03 t | 1991 | 6.92 t | 2010 | 5.92 t |
| 1973 | 7.55 t | 1992 | 6.84 t | 2011 | 5.34 t |
| 1974 | 6.77 t | 1993 | 6.45 t | 2012 | 5.45 t |
| 1975 | 6.4 t | 1994 | 6.26 t | 2013 | 5.51 t |
| 1976 | 6.7 t | 1995 | 6.33 t | 2014 | 4.99 t |
| 1977 | 6.79 t | 1996 | 6.38 t | 2015 | 4.86 t |
| 1978 | 6.98 t | 1997 | 6.18 t | 2016 | 4.87 t |
| 1979 | 6.76 t | 1998 | 6.37 t | 2017 | 4.71 t |
| 1980 | 6.85 t | 1999 | 6.38 t | 2018 | 4.52 t |
| 1981 | 6.44 t | 2000 | 6.23 t | 2019 | 4.48 t |
| 1982 | 6.06 t | 2001 | 6.39 t | 2020 | 4.16 t |
| 1983 | 6.67 t | 2002 | 6.12 t | 2021 | 4.32 t |
| 1984 | 6.57 t | 2003 | 6.25 t | 2022 | 3.93 t |
| 1985 | 7.03 t | 2004 | 6.28 t | 2023 | 3.79 t |
| 1986 | 6.98 t | 2005 | 6.32 t | 2024 | 3.75 t |
| 1987 | 6.7 t | 2006 | 6.23 t | | |
| 1988 | 6.64 t | 2007 | 5.91 t | | |