表を表示
| 1970 | 41.57 Mt | 1989 | 53.89 Mt | 2008 | 59.83 Mt |
| 1971 | 40.98 Mt | 1990 | 56.23 Mt | 2009 | 57.08 Mt |
| 1972 | 44.35 Mt | 1991 | 56.91 Mt | 2010 | 65.85 Mt |
| 1973 | 48.43 Mt | 1992 | 54.09 Mt | 2011 | 58.22 Mt |
| 1974 | 44.61 Mt | 1993 | 55.37 Mt | 2012 | 52.33 Mt |
| 1975 | 44.77 Mt | 1994 | 62.09 Mt | 2013 | 53.33 Mt |
| 1976 | 51 Mt | 1995 | 58.75 Mt | 2014 | 49.44 Mt |
| 1977 | 50.68 Mt | 1996 | 64.94 Mt | 2015 | 45.98 Mt |
| 1978 | 57.13 Mt | 1997 | 62.74 Mt | 2016 | 48.81 Mt |
| 1979 | 56.9 Mt | 1998 | 59.54 Mt | 2017 | 46.08 Mt |
| 1980 | 57.42 Mt | 1999 | 58.9 Mt | 2018 | 47.44 Mt |
| 1981 | 48.01 Mt | 2000 | 57.53 Mt | 2019 | 44.14 Mt |
| 1982 | 46.27 Mt | 2001 | 63.58 Mt | 2020 | 39.47 Mt |
| 1983 | 44.68 Mt | 2002 | 65.73 Mt | 2021 | 39.31 Mt |
| 1984 | 46.03 Mt | 2003 | 74.1 Mt | 2022 | 37.12 Mt |
| 1985 | 50.46 Mt | 2004 | 70.45 Mt | 2023 | 32.89 Mt |
| 1986 | 50.57 Mt | 2005 | 58.25 Mt | 2024 | 31.11 Mt |
| 1987 | 55.23 Mt | 2006 | 69.86 Mt | | |
| 1988 | 53.87 Mt | 2007 | 68.07 Mt | | |
表を表示
| 1970 | 9.03 t | 1989 | 10.86 t | 2008 | 11.26 t |
| 1971 | 8.89 t | 1990 | 11.28 t | 2009 | 10.69 t |
| 1972 | 9.56 t | 1991 | 11.35 t | 2010 | 12.28 t |
| 1973 | 10.38 t | 1992 | 10.73 t | 2011 | 10.81 t |
| 1974 | 9.51 t | 1993 | 10.93 t | 2012 | 9.67 t |
| 1975 | 9.5 t | 1994 | 12.2 t | 2013 | 9.81 t |
| 1976 | 10.79 t | 1995 | 11.5 t | 2014 | 9.05 t |
| 1977 | 10.69 t | 1996 | 12.67 t | 2015 | 8.39 t |
| 1978 | 12.02 t | 1997 | 12.21 t | 2016 | 8.88 t |
| 1979 | 11.94 t | 1998 | 11.55 t | 2017 | 8.36 t |
| 1980 | 12.01 t | 1999 | 11.4 t | 2018 | 8.6 t |
| 1981 | 10 t | 2000 | 11.11 t | 2019 | 7.99 t |
| 1982 | 9.59 t | 2001 | 12.25 t | 2020 | 7.14 t |
| 1983 | 9.2 t | 2002 | 12.64 t | 2021 | 7.09 t |
| 1984 | 9.43 t | 2003 | 14.21 t | 2022 | 6.68 t |
| 1985 | 10.29 t | 2004 | 13.48 t | 2023 | 5.89 t |
| 1986 | 10.28 t | 2005 | 11.1 t | 2024 | 5.54 t |
| 1987 | 11.2 t | 2006 | 13.26 t | | |
| 1988 | 10.89 t | 2007 | 12.87 t | | |