表を表示
| 1970 | 0.1027 Mt | 1989 | 0.1621 Mt | 2008 | 0.2311 Mt |
| 1971 | 0.1026 Mt | 1990 | 0.164 Mt | 2009 | 0.2667 Mt |
| 1972 | 0.1249 Mt | 1991 | 0.1647 Mt | 2010 | 0.2789 Mt |
| 1973 | 0.126 Mt | 1992 | 0.1658 Mt | 2011 | 0.2128 Mt |
| 1974 | 0.1123 Mt | 1993 | 0.1617 Mt | 2012 | 0.2268 Mt |
| 1975 | 0.1359 Mt | 1994 | 0.1761 Mt | 2013 | 0.2598 Mt |
| 1976 | 0.1232 Mt | 1995 | 0.1842 Mt | 2014 | 0.2797 Mt |
| 1977 | 0.136 Mt | 1996 | 0.1827 Mt | 2015 | 0.291 Mt |
| 1978 | 0.136 Mt | 1997 | 0.1933 Mt | 2016 | 0.3149 Mt |
| 1979 | 0.1345 Mt | 1998 | 0.1979 Mt | 2017 | 0.2772 Mt |
| 1980 | 0.133 Mt | 1999 | 0.2005 Mt | 2018 | 0.2872 Mt |
| 1981 | 0.1166 Mt | 2000 | 0.1357 Mt | 2019 | 0.3426 Mt |
| 1982 | 0.1479 Mt | 2001 | 0.1326 Mt | 2020 | 0.326 Mt |
| 1983 | 0.0857 Mt | 2002 | 0.1501 Mt | 2021 | 0.3315 Mt |
| 1984 | 0.1046 Mt | 2003 | 0.1637 Mt | 2022 | 0.343 Mt |
| 1985 | 0.105 Mt | 2004 | 0.1664 Mt | 2023 | 0.3441 Mt |
| 1986 | 0.111 Mt | 2005 | 0.1725 Mt | 2024 | 0.3562 Mt |
| 1987 | 0.1466 Mt | 2006 | 0.1962 Mt | | |
| 1988 | 0.1582 Mt | 2007 | 0.2146 Mt | | |
表を表示
| 1970 | 1.59 t | 1989 | 2.56 t | 2008 | 2.79 t |
| 1971 | 1.59 t | 1990 | 2.6 t | 2009 | 3.17 t |
| 1972 | 1.93 t | 1991 | 2.6 t | 2010 | 3.27 t |
| 1973 | 1.96 t | 1992 | 2.57 t | 2011 | 2.46 t |
| 1974 | 1.75 t | 1993 | 2.47 t | 2012 | 2.6 t |
| 1975 | 2.13 t | 1994 | 2.63 t | 2013 | 2.95 t |
| 1976 | 1.93 t | 1995 | 2.7 t | 2014 | 3.15 t |
| 1977 | 2.13 t | 1996 | 2.62 t | 2015 | 3.25 t |
| 1978 | 2.12 t | 1997 | 2.72 t | 2016 | 3.5 t |
| 1979 | 2.09 t | 1998 | 2.73 t | 2017 | 3.06 t |
| 1980 | 2.06 t | 1999 | 2.72 t | 2018 | 3.16 t |
| 1981 | 1.8 t | 2000 | 1.81 t | 2019 | 3.75 t |
| 1982 | 2.28 t | 2001 | 1.74 t | 2020 | 3.55 t |
| 1983 | 1.32 t | 2002 | 1.95 t | 2021 | 3.59 t |
| 1984 | 1.61 t | 2003 | 2.1 t | 2022 | 3.69 t |
| 1985 | 1.63 t | 2004 | 2.11 t | 2023 | 3.69 t |
| 1986 | 1.73 t | 2005 | 2.17 t | 2024 | 3.8 t |
| 1987 | 2.29 t | 2006 | 2.43 t | | |
| 1988 | 2.49 t | 2007 | 2.63 t | | |