表を表示
| 1970 | 0.1069 Mt | 1989 | 0.3838 Mt | 2008 | 0.9212 Mt |
| 1971 | 0.1069 Mt | 1990 | 0.2659 Mt | 2009 | 1.0202 Mt |
| 1972 | 0.1064 Mt | 1991 | 0.3796 Mt | 2010 | 0.917 Mt |
| 1973 | 0.1101 Mt | 1992 | 0.3192 Mt | 2011 | 0.7817 Mt |
| 1974 | 0.1189 Mt | 1993 | 0.3204 Mt | 2012 | 0.8866 Mt |
| 1975 | 0.1235 Mt | 1994 | 0.3193 Mt | 2013 | 0.8023 Mt |
| 1976 | 0.1281 Mt | 1995 | 0.34 Mt | 2014 | 0.9261 Mt |
| 1977 | 0.1326 Mt | 1996 | 0.3521 Mt | 2015 | 0.9868 Mt |
| 1978 | 0.1347 Mt | 1997 | 0.3711 Mt | 2016 | 1.1003 Mt |
| 1979 | 0.1556 Mt | 1998 | 0.3797 Mt | 2017 | 1.1528 Mt |
| 1980 | 0.1527 Mt | 1999 | 0.3962 Mt | 2018 | 1.0053 Mt |
| 1981 | 0.117 Mt | 2000 | 0.7545 Mt | 2019 | 0.8948 Mt |
| 1982 | 0.0995 Mt | 2001 | 0.8382 Mt | 2020 | 0.8388 Mt |
| 1983 | 0.188 Mt | 2002 | 0.7586 Mt | 2021 | 0.7882 Mt |
| 1984 | 0.191 Mt | 2003 | 0.7652 Mt | 2022 | 0.8424 Mt |
| 1985 | 0.1998 Mt | 2004 | 1.0615 Mt | 2023 | 0.8395 Mt |
| 1986 | 0.1971 Mt | 2005 | 0.9643 Mt | 2024 | 0.8782 Mt |
| 1987 | 0.2943 Mt | 2006 | 1.0495 Mt | | |
| 1988 | 0.4006 Mt | 2007 | 0.8675 Mt | | |
表を表示
| 1970 | 1.99 t | 1989 | 5.55 t | 2008 | 10.59 t |
| 1971 | 1.95 t | 1990 | 3.83 t | 2009 | 11.69 t |
| 1972 | 1.9 t | 1991 | 5.39 t | 2010 | 10.21 t |
| 1973 | 1.94 t | 1992 | 4.51 t | 2011 | 8.94 t |
| 1974 | 2.05 t | 1993 | 4.43 t | 2012 | 10.04 t |
| 1975 | 2.08 t | 1994 | 4.3 t | 2013 | 8.92 t |
| 1976 | 2.12 t | 1995 | 4.52 t | 2014 | 10.14 t |
| 1977 | 2.15 t | 1996 | 4.61 t | 2015 | 10.56 t |
| 1978 | 2.17 t | 1997 | 4.8 t | 2016 | 11.62 t |
| 1979 | 2.48 t | 1998 | 4.82 t | 2017 | 12.03 t |
| 1980 | 2.41 t | 1999 | 4.93 t | 2018 | 10.39 t |
| 1981 | 1.83 t | 2000 | 9.3 t | 2019 | 9.17 t |
| 1982 | 1.54 t | 2001 | 10.32 t | 2020 | 8.52 t |
| 1983 | 2.92 t | 2002 | 9.06 t | 2021 | 7.94 t |
| 1984 | 2.95 t | 2003 | 9.24 t | 2022 | 7.03 t |
| 1985 | 3.06 t | 2004 | 12.87 t | 2023 | 7.01 t |
| 1986 | 3 t | 2005 | 11.64 t | 2024 | 7.24 t |
| 1987 | 4.3 t | 2006 | 12.41 t | | |
| 1988 | 5.83 t | 2007 | 10.2 t | | |