表を表示
| 1970 | 0.0583 Mt | 1989 | 0.2439 Mt | 2008 | 0.2207 Mt |
| 1971 | 0.0584 Mt | 1990 | 0.2008 Mt | 2009 | 0.2224 Mt |
| 1972 | 0.0582 Mt | 1991 | 0.2847 Mt | 2010 | 0.3199 Mt |
| 1973 | 0.06 Mt | 1992 | 0.2237 Mt | 2011 | 0.4154 Mt |
| 1974 | 0.0642 Mt | 1993 | 0.2488 Mt | 2012 | 0.3993 Mt |
| 1975 | 0.0665 Mt | 1994 | 0.2577 Mt | 2013 | 0.4522 Mt |
| 1976 | 0.0688 Mt | 1995 | 0.2539 Mt | 2014 | 0.4055 Mt |
| 1977 | 0.0711 Mt | 1996 | 0.2724 Mt | 2015 | 0.435 Mt |
| 1978 | 0.0723 Mt | 1997 | 0.2705 Mt | 2016 | 0.4859 Mt |
| 1979 | 0.0823 Mt | 1998 | 0.2867 Mt | 2017 | 0.5463 Mt |
| 1980 | 0.0812 Mt | 1999 | 0.299 Mt | 2018 | 0.7765 Mt |
| 1981 | 0.0884 Mt | 2000 | 0.2925 Mt | 2019 | 0.7652 Mt |
| 1982 | 0.0737 Mt | 2001 | 0.2358 Mt | 2020 | 0.9258 Mt |
| 1983 | 0.0898 Mt | 2002 | 0.2227 Mt | 2021 | 0.8974 Mt |
| 1984 | 0.1064 Mt | 2003 | 0.1851 Mt | 2022 | 0.9301 Mt |
| 1985 | 0.1064 Mt | 2004 | 0.2191 Mt | 2023 | 0.9495 Mt |
| 1986 | 0.1116 Mt | 2005 | 0.184 Mt | 2024 | 0.9687 Mt |
| 1987 | 0.1622 Mt | 2006 | 0.2304 Mt | | |
| 1988 | 0.2297 Mt | 2007 | 0.3728 Mt | | |
表を表示
| 1970 | 0.02 t | 1989 | 0.04 t | 2008 | 0.03 t |
| 1971 | 0.02 t | 1990 | 0.04 t | 2009 | 0.02 t |
| 1972 | 0.02 t | 1991 | 0.05 t | 2010 | 0.03 t |
| 1973 | 0.02 t | 1992 | 0.04 t | 2011 | 0.04 t |
| 1974 | 0.02 t | 1993 | 0.04 t | 2012 | 0.04 t |
| 1975 | 0.02 t | 1994 | 0.05 t | 2013 | 0.04 t |
| 1976 | 0.02 t | 1995 | 0.04 t | 2014 | 0.04 t |
| 1977 | 0.02 t | 1996 | 0.04 t | 2015 | 0.04 t |
| 1978 | 0.02 t | 1997 | 0.04 t | 2016 | 0.04 t |
| 1979 | 0.02 t | 1998 | 0.05 t | 2017 | 0.05 t |
| 1980 | 0.02 t | 1999 | 0.05 t | 2018 | 0.07 t |
| 1981 | 0.02 t | 2000 | 0.05 t | 2019 | 0.06 t |
| 1982 | 0.02 t | 2001 | 0.04 t | 2020 | 0.07 t |
| 1983 | 0.02 t | 2002 | 0.03 t | 2021 | 0.07 t |
| 1984 | 0.02 t | 2003 | 0.03 t | 2022 | 0.07 t |
| 1985 | 0.02 t | 2004 | 0.03 t | 2023 | 0.07 t |
| 1986 | 0.02 t | 2005 | 0.02 t | 2024 | 0.07 t |
| 1987 | 0.03 t | 2006 | 0.03 t | | |
| 1988 | 0.04 t | 2007 | 0.05 t | | |