表を表示
| 1970 | 0.0993 Mt | 1989 | 0.5471 Mt | 2008 | 0.6778 Mt |
| 1971 | 0.0994 Mt | 1990 | 0.553 Mt | 2009 | 0.6965 Mt |
| 1972 | 0.1056 Mt | 1991 | 0.4977 Mt | 2010 | 0.7312 Mt |
| 1973 | 0.1088 Mt | 1992 | 0.4991 Mt | 2011 | 0.7618 Mt |
| 1974 | 0.1089 Mt | 1993 | 0.5007 Mt | 2012 | 0.8472 Mt |
| 1975 | 0.1245 Mt | 1994 | 0.4794 Mt | 2013 | 0.9431 Mt |
| 1976 | 0.1557 Mt | 1995 | 0.4704 Mt | 2014 | 0.9592 Mt |
| 1977 | 0.1552 Mt | 1996 | 0.4719 Mt | 2015 | 1.1072 Mt |
| 1978 | 0.1704 Mt | 1997 | 0.4819 Mt | 2016 | 1.2106 Mt |
| 1979 | 0.171 Mt | 1998 | 0.4972 Mt | 2017 | 1.3115 Mt |
| 1980 | 0.3661 Mt | 1999 | 0.5137 Mt | 2018 | 1.4591 Mt |
| 1981 | 0.438 Mt | 2000 | 0.6805 Mt | 2019 | 1.5151 Mt |
| 1982 | 0.4483 Mt | 2001 | 0.6956 Mt | 2020 | 1.4554 Mt |
| 1983 | 0.4994 Mt | 2002 | 0.8185 Mt | 2021 | 1.7066 Mt |
| 1984 | 0.4436 Mt | 2003 | 0.7085 Mt | 2022 | 2.2012 Mt |
| 1985 | 0.4638 Mt | 2004 | 0.6867 Mt | 2023 | 2.2883 Mt |
| 1986 | 0.4675 Mt | 2005 | 0.7419 Mt | 2024 | 2.3114 Mt |
| 1987 | 0.4727 Mt | 2006 | 0.7446 Mt | | |
| 1988 | 0.5455 Mt | 2007 | 0.6778 Mt | | |
表を表示
| 1970 | 0.02 t | 1989 | 0.08 t | 2008 | 0.07 t |
| 1971 | 0.02 t | 1990 | 0.07 t | 2009 | 0.07 t |
| 1972 | 0.03 t | 1991 | 0.07 t | 2010 | 0.07 t |
| 1973 | 0.03 t | 1992 | 0.06 t | 2011 | 0.07 t |
| 1974 | 0.02 t | 1993 | 0.06 t | 2012 | 0.08 t |
| 1975 | 0.03 t | 1994 | 0.07 t | 2013 | 0.09 t |
| 1976 | 0.03 t | 1995 | 0.08 t | 2014 | 0.08 t |
| 1977 | 0.03 t | 1996 | 0.07 t | 2015 | 0.1 t |
| 1978 | 0.03 t | 1997 | 0.06 t | 2016 | 0.1 t |
| 1979 | 0.03 t | 1998 | 0.06 t | 2017 | 0.11 t |
| 1980 | 0.07 t | 1999 | 0.06 t | 2018 | 0.12 t |
| 1981 | 0.08 t | 2000 | 0.08 t | 2019 | 0.12 t |
| 1982 | 0.08 t | 2001 | 0.08 t | 2020 | 0.11 t |
| 1983 | 0.08 t | 2002 | 0.1 t | 2021 | 0.13 t |
| 1984 | 0.07 t | 2003 | 0.08 t | 2022 | 0.16 t |
| 1985 | 0.07 t | 2004 | 0.08 t | 2023 | 0.16 t |
| 1986 | 0.07 t | 2005 | 0.08 t | 2024 | 0.16 t |
| 1987 | 0.07 t | 2006 | 0.08 t | | |
| 1988 | 0.08 t | 2007 | 0.07 t | | |