表を表示
| 1970 | 14.7 Mt | 1989 | 17.5 Mt | 2008 | 61.86 Mt |
| 1971 | 18.3 Mt | 1990 | 16.98 Mt | 2009 | 63.97 Mt |
| 1972 | 22.02 Mt | 1991 | 18.03 Mt | 2010 | 72.21 Mt |
| 1973 | 24.67 Mt | 1992 | 18.97 Mt | 2011 | 83.18 Mt |
| 1974 | 20.81 Mt | 1993 | 19.47 Mt | 2012 | 92.32 Mt |
| 1975 | 19.92 Mt | 1994 | 20.51 Mt | 2013 | 102.13 Mt |
| 1976 | 18.64 Mt | 1995 | 20.98 Mt | 2014 | 110.76 Mt |
| 1977 | 16.69 Mt | 1996 | 22.78 Mt | 2015 | 114.08 Mt |
| 1978 | 18.8 Mt | 1997 | 27.9 Mt | 2016 | 114.05 Mt |
| 1979 | 17.6 Mt | 1998 | 30.04 Mt | 2017 | 114.11 Mt |
| 1980 | 14.56 Mt | 1999 | 32.53 Mt | 2018 | 114.9 Mt |
| 1981 | 11.83 Mt | 2000 | 31.75 Mt | 2019 | 117.66 Mt |
| 1982 | 12.64 Mt | 2001 | 32.43 Mt | 2020 | 115.34 Mt |
| 1983 | 11.33 Mt | 2002 | 36.2 Mt | 2021 | 118.44 Mt |
| 1984 | 16.35 Mt | 2003 | 38.27 Mt | 2022 | 120.1 Mt |
| 1985 | 15.45 Mt | 2004 | 41.17 Mt | 2023 | 129.2 Mt |
| 1986 | 16.23 Mt | 2005 | 43.56 Mt | 2024 | 135.27 Mt |
| 1987 | 16.4 Mt | 2006 | 48.99 Mt | | |
| 1988 | 16.75 Mt | 2007 | 56.15 Mt | | |
表を表示
| 1970 | 126.35 t | 1989 | 41.12 t | 2008 | 43.35 t |
| 1971 | 139.3 t | 1990 | 38.58 t | 2009 | 39.76 t |
| 1972 | 150.31 t | 1991 | 39.63 t | 2010 | 44.66 t |
| 1973 | 152.44 t | 1992 | 40.4 t | 2011 | 51.2 t |
| 1974 | 117.35 t | 1993 | 40.18 t | 2012 | 53.6 t |
| 1975 | 103.16 t | 1994 | 41.06 t | 2013 | 53.29 t |
| 1976 | 89.17 t | 1995 | 40.79 t | 2014 | 51.48 t |
| 1977 | 74.09 t | 1996 | 43.07 t | 2015 | 48.66 t |
| 1978 | 77.75 t | 1997 | 50.68 t | 2016 | 46.04 t |
| 1979 | 68.03 t | 1998 | 51.75 t | 2017 | 44.82 t |
| 1980 | 52.79 t | 1999 | 53.11 t | 2018 | 44.52 t |
| 1981 | 40.29 t | 2000 | 49.23 t | 2019 | 44.59 t |
| 1982 | 40.58 t | 2001 | 47.84 t | 2020 | 41.28 t |
| 1983 | 34.35 t | 2002 | 50.9 t | 2021 | 47.28 t |
| 1984 | 47 t | 2003 | 51.39 t | 2022 | 45.2 t |
| 1985 | 42.22 t | 2004 | 53.24 t | 2023 | 48.64 t |
| 1986 | 42.45 t | 2005 | 52.77 t | 2024 | 47.33 t |
| 1987 | 41.31 t | 2006 | 50.36 t | | |
| 1988 | 40.74 t | 2007 | 46.46 t | | |