Mostrar tabla de datos
| 1970 | 0,6038 Mt | 1989 | 6,2587 Mt | 2008 | 5,5191 Mt |
| 1971 | 1,1169 Mt | 1990 | 6,1713 Mt | 2009 | 5,4491 Mt |
| 1972 | 1,2037 Mt | 1991 | 4,9342 Mt | 2010 | 5,9582 Mt |
| 1973 | 3,8555 Mt | 1992 | 4,9722 Mt | 2011 | 5,82 Mt |
| 1974 | 3,9575 Mt | 1993 | 5,083 Mt | 2012 | 5,89 Mt |
| 1975 | 5,0974 Mt | 1994 | 5,0462 Mt | 2013 | 6,0777 Mt |
| 1976 | 5,9132 Mt | 1995 | 5,671 Mt | 2014 | 6,2671 Mt |
| 1977 | 5,8445 Mt | 1996 | 6,333 Mt | 2015 | 6,4413 Mt |
| 1978 | 6,4961 Mt | 1997 | 6,0492 Mt | 2016 | 6,559 Mt |
| 1979 | 6,3995 Mt | 1998 | 6,9234 Mt | 2017 | 5,7489 Mt |
| 1980 | 6,152 Mt | 1999 | 6,5904 Mt | 2018 | 5,4109 Mt |
| 1981 | 6,4752 Mt | 2000 | 6,6039 Mt | 2019 | 5,6528 Mt |
| 1982 | 6,4583 Mt | 2001 | 6,741 Mt | 2020 | 5,5287 Mt |
| 1983 | 5,9314 Mt | 2002 | 6,4721 Mt | 2021 | 5,3647 Mt |
| 1984 | 6,8603 Mt | 2003 | 7,3423 Mt | 2022 | 5,5833 Mt |
| 1985 | 7,8407 Mt | 2004 | 6,6252 Mt | 2023 | 5,1205 Mt |
| 1986 | 5,6285 Mt | 2005 | 6,3917 Mt | 2024 | 5,1985 Mt |
| 1987 | 4,7994 Mt | 2006 | 5,7072 Mt | | |
| 1988 | 4,9602 Mt | 2007 | 5,1756 Mt | | |
Mostrar tabla de datos
| 1970 | 1,01 t | 1989 | 6,54 t | 2008 | 3,43 t |
| 1971 | 1,84 t | 1990 | 6,27 t | 2009 | 3,28 t |
| 1972 | 1,94 t | 1991 | 4,88 t | 2010 | 3,46 t |
| 1973 | 6,08 t | 1992 | 4,79 t | 2011 | 3,27 t |
| 1974 | 6,11 t | 1993 | 4,77 t | 2012 | 3,19 t |
| 1975 | 7,7 t | 1994 | 4,61 t | 2013 | 3,18 t |
| 1976 | 8,73 t | 1995 | 5,05 t | 2014 | 3,17 t |
| 1977 | 8,42 t | 1996 | 5,5 t | 2015 | 3,16 t |
| 1978 | 9,13 t | 1997 | 5,12 t | 2016 | 3,12 t |
| 1979 | 8,77 t | 1998 | 5,71 t | 2017 | 2,67 t |
| 1980 | 8,22 t | 1999 | 5,3 t | 2018 | 2,45 t |
| 1981 | 8,43 t | 2000 | 5,18 t | 2019 | 2,49 t |
| 1982 | 8,18 t | 2001 | 5,15 t | 2020 | 2,38 t |
| 1983 | 7,31 t | 2002 | 4,81 t | 2021 | 2,26 t |
| 1984 | 8,23 t | 2003 | 5,31 t | 2022 | 2,3 t |
| 1985 | 9,15 t | 2004 | 4,66 t | 2023 | 2,06 t |
| 1986 | 6,39 t | 2005 | 4,37 t | 2024 | 2,05 t |
| 1987 | 5,3 t | 2006 | 3,78 t | | |
| 1988 | 5,33 t | 2007 | 3,33 t | | |