Mostrar tabla de datos
| 1970 | 309,11 Mt | 1989 | 447,11 Mt | 2008 | 324,58 Mt |
| 1971 | 317,57 Mt | 1990 | 371,52 Mt | 2009 | 311,38 Mt |
| 1972 | 330,89 Mt | 1991 | 369,23 Mt | 2010 | 329,38 Mt |
| 1973 | 348,58 Mt | 1992 | 360,32 Mt | 2011 | 326,94 Mt |
| 1974 | 361,75 Mt | 1993 | 360,77 Mt | 2012 | 319,73 Mt |
| 1975 | 376,97 Mt | 1994 | 354,66 Mt | 2013 | 315,09 Mt |
| 1976 | 401,7 Mt | 1995 | 356,44 Mt | 2014 | 302,57 Mt |
| 1977 | 416,31 Mt | 1996 | 372,45 Mt | 2015 | 305,79 Mt |
| 1978 | 444,21 Mt | 1997 | 362,67 Mt | 2016 | 316,73 Mt |
| 1979 | 444,84 Mt | 1998 | 334,07 Mt | 2017 | 330,22 Mt |
| 1980 | 456,3 Mt | 1999 | 324,65 Mt | 2018 | 329,63 Mt |
| 1981 | 418,96 Mt | 2000 | 313,03 Mt | 2019 | 312,07 Mt |
| 1982 | 425,2 Mt | 2001 | 309,76 Mt | 2020 | 296,88 Mt |
| 1983 | 429,17 Mt | 2002 | 302,51 Mt | 2021 | 324,01 Mt |
| 1984 | 444,48 Mt | 2003 | 315,3 Mt | 2022 | 307,96 Mt |
| 1985 | 454,63 Mt | 2004 | 317,49 Mt | 2023 | 280,65 Mt |
| 1986 | 462,25 Mt | 2005 | 317,1 Mt | 2024 | 276,06 Mt |
| 1987 | 478,2 Mt | 2006 | 330,75 Mt | | |
| 1988 | 468,01 Mt | 2007 | 330,3 Mt | | |
Mostrar tabla de datos
| 1970 | 9,46 t | 1989 | 11,78 t | 2008 | 8,51 t |
| 1971 | 9,69 t | 1990 | 9,75 t | 2009 | 8,16 t |
| 1972 | 10,01 t | 1991 | 9,65 t | 2010 | 8,66 t |
| 1973 | 10,45 t | 1992 | 9,39 t | 2011 | 8,59 t |
| 1974 | 10,74 t | 1993 | 9,38 t | 2012 | 8,4 t |
| 1975 | 11,08 t | 1994 | 9,2 t | 2013 | 8,28 t |
| 1976 | 11,69 t | 1995 | 9,24 t | 2014 | 7,96 t |
| 1977 | 12 t | 1996 | 9,64 t | 2015 | 8,05 t |
| 1978 | 12,7 t | 1997 | 9,38 t | 2016 | 8,34 t |
| 1979 | 12,62 t | 1998 | 8,64 t | 2017 | 8,7 t |
| 1980 | 12,83 t | 1999 | 8,4 t | 2018 | 8,68 t |
| 1981 | 11,67 t | 2000 | 8,18 t | 2019 | 8,22 t |
| 1982 | 11,74 t | 2001 | 8,1 t | 2020 | 7,91 t |
| 1983 | 11,74 t | 2002 | 7,91 t | 2021 | 8,76 t |
| 1984 | 12,04 t | 2003 | 8,25 t | 2022 | 8,36 t |
| 1985 | 12,22 t | 2004 | 8,32 t | 2023 | 7,65 t |
| 1986 | 12,34 t | 2005 | 8,31 t | 2024 | 7,55 t |
| 1987 | 12,7 t | 2006 | 8,67 t | | |
| 1988 | 12,37 t | 2007 | 8,66 t | | |