Mostrar tabla de datos
| 1970 | 19,29 Mt | 1989 | 31,35 Mt | 2008 | 7,9275 Mt |
| 1971 | 19,3 Mt | 1990 | 31,82 Mt | 2009 | 7,808 Mt |
| 1972 | 20,42 Mt | 1991 | 25,65 Mt | 2010 | 8,5049 Mt |
| 1973 | 21,75 Mt | 1992 | 20,41 Mt | 2011 | 8,5348 Mt |
| 1974 | 22,97 Mt | 1993 | 17,36 Mt | 2012 | 8,3528 Mt |
| 1975 | 24,64 Mt | 1994 | 14,08 Mt | 2013 | 7,4941 Mt |
| 1976 | 25,47 Mt | 1995 | 12,26 Mt | 2014 | 8,0409 Mt |
| 1977 | 26,06 Mt | 1996 | 10,56 Mt | 2015 | 8,2992 Mt |
| 1978 | 27,05 Mt | 1997 | 9,6327 Mt | 2016 | 8,4234 Mt |
| 1979 | 27,71 Mt | 1998 | 8,7879 Mt | 2017 | 8,3058 Mt |
| 1980 | 28,83 Mt | 1999 | 7,4496 Mt | 2018 | 8,8624 Mt |
| 1981 | 28,77 Mt | 2000 | 6,8956 Mt | 2019 | 9,1101 Mt |
| 1982 | 29,08 Mt | 2001 | 7,1817 Mt | 2020 | 8,8484 Mt |
| 1983 | 29,31 Mt | 2002 | 7,3093 Mt | 2021 | 9,6527 Mt |
| 1984 | 29,55 Mt | 2003 | 7,8708 Mt | 2022 | 8,2882 Mt |
| 1985 | 29,76 Mt | 2004 | 7,8917 Mt | 2023 | 8,2074 Mt |
| 1986 | 30,59 Mt | 2005 | 8,3311 Mt | 2024 | 8,2081 Mt |
| 1987 | 31,32 Mt | 2006 | 8,112 Mt | | |
| 1988 | 31,53 Mt | 2007 | 8,0256 Mt | | |
Mostrar tabla de datos
| 1970 | 7,91 t | 1989 | 10,56 t | 2008 | 2,76 t |
| 1971 | 7,85 t | 1990 | 10,68 t | 2009 | 2,73 t |
| 1972 | 8,22 t | 1991 | 8,6 t | 2010 | 2,97 t |
| 1973 | 8,66 t | 1992 | 6,85 t | 2011 | 2,98 t |
| 1974 | 9,05 t | 1993 | 5,83 t | 2012 | 2,92 t |
| 1975 | 9,6 t | 1994 | 4,75 t | 2013 | 2,62 t |
| 1976 | 9,81 t | 1995 | 4,15 t | 2014 | 2,81 t |
| 1977 | 9,92 t | 1996 | 3,58 t | 2015 | 2,93 t |
| 1978 | 10,18 t | 1997 | 3,28 t | 2016 | 3 t |
| 1979 | 10,33 t | 1998 | 2,99 t | 2017 | 3,01 t |
| 1980 | 10,64 t | 1999 | 2,54 t | 2018 | 3,27 t |
| 1981 | 10,51 t | 2000 | 2,36 t | 2019 | 3,42 t |
| 1982 | 10,53 t | 2001 | 2,46 t | 2020 | 3,36 t |
| 1983 | 10,5 t | 2002 | 2,51 t | 2021 | 3,72 t |
| 1984 | 10,48 t | 2003 | 2,71 t | 2022 | 3,28 t |
| 1985 | 10,44 t | 2004 | 2,73 t | 2023 | 3,34 t |
| 1986 | 10,61 t | 2005 | 2,88 t | 2024 | 3,42 t |
| 1987 | 10,74 t | 2006 | 2,82 t | | |
| 1988 | 10,69 t | 2007 | 2,79 t | | |