Mostrar tabla de datos
| 1970 | 75,98 Mt | 1989 | 137,69 Mt | 2008 | 74,48 Mt |
| 1971 | 76,32 Mt | 1990 | 131,96 Mt | 2009 | 71,67 Mt |
| 1972 | 79,3 Mt | 1991 | 126,92 Mt | 2010 | 69,04 Mt |
| 1973 | 81,03 Mt | 1992 | 112,24 Mt | 2011 | 50,81 Mt |
| 1974 | 84,13 Mt | 1993 | 104,01 Mt | 2012 | 49,02 Mt |
| 1975 | 87,85 Mt | 1994 | 95,19 Mt | 2013 | 37,91 Mt |
| 1976 | 93,13 Mt | 1995 | 89,1 Mt | 2014 | 41,61 Mt |
| 1977 | 98,34 Mt | 1996 | 79,06 Mt | 2015 | 32,65 Mt |
| 1978 | 103,67 Mt | 1997 | 76,67 Mt | 2016 | 36,03 Mt |
| 1979 | 111,97 Mt | 1998 | 62,87 Mt | 2017 | 73,54 Mt |
| 1980 | 117,87 Mt | 1999 | 68,57 Mt | 2018 | 66,4 Mt |
| 1981 | 120,98 Mt | 2000 | 73,81 Mt | 2019 | 73,41 Mt |
| 1982 | 126,52 Mt | 2001 | 76,67 Mt | 2020 | 69,05 Mt |
| 1983 | 131,05 Mt | 2002 | 73,44 Mt | 2021 | 57,29 Mt |
| 1984 | 135,64 Mt | 2003 | 74,98 Mt | 2022 | 59,8 Mt |
| 1985 | 140,05 Mt | 2004 | 76,52 Mt | 2023 | 65,66 Mt |
| 1986 | 138,37 Mt | 2005 | 79,74 Mt | 2024 | 66,24 Mt |
| 1987 | 133,25 Mt | 2006 | 81,25 Mt | | |
| 1988 | 136,64 Mt | 2007 | 67,99 Mt | | |
Mostrar tabla de datos
| 1970 | 5,01 t | 1989 | 6,62 t | 2008 | 3,01 t |
| 1971 | 4,9 t | 1990 | 6,25 t | 2009 | 2,88 t |
| 1972 | 4,96 t | 1991 | 5,92 t | 2010 | 2,76 t |
| 1973 | 4,96 t | 1992 | 5,16 t | 2011 | 2,02 t |
| 1974 | 5,05 t | 1993 | 4,71 t | 2012 | 1,94 t |
| 1975 | 5,18 t | 1994 | 4,25 t | 2013 | 1,5 t |
| 1976 | 5,4 t | 1995 | 3,93 t | 2014 | 1,63 t |
| 1977 | 5,62 t | 1996 | 3,45 t | 2015 | 1,28 t |
| 1978 | 5,84 t | 1997 | 3,32 t | 2016 | 1,4 t |
| 1979 | 6,23 t | 1998 | 2,7 t | 2017 | 2,85 t |
| 1980 | 6,46 t | 1999 | 2,92 t | 2018 | 2,56 t |
| 1981 | 6,54 t | 2000 | 3,12 t | 2019 | 2,82 t |
| 1982 | 6,74 t | 2001 | 3,22 t | 2020 | 2,64 t |
| 1983 | 6,88 t | 2002 | 3,07 t | 2021 | 2,18 t |
| 1984 | 7,02 t | 2003 | 3,11 t | 2022 | 2,27 t |
| 1985 | 7,14 t | 2004 | 3,16 t | 2023 | 2,49 t |
| 1986 | 6,95 t | 2005 | 3,27 t | 2024 | 2,5 t |
| 1987 | 6,59 t | 2006 | 3,31 t | | |
| 1988 | 6,66 t | 2007 | 2,76 t | | |