Mostrar tabla de datos
| 1970 | 124,98 Mt | 1989 | 214,9 Mt | 2008 | 105,37 Mt |
| 1971 | 125,78 Mt | 1990 | 187,73 Mt | 2009 | 85,69 Mt |
| 1972 | 131,26 Mt | 1991 | 152,01 Mt | 2010 | 83,34 Mt |
| 1973 | 143,44 Mt | 1992 | 138,36 Mt | 2011 | 89,82 Mt |
| 1974 | 145,63 Mt | 1993 | 131,1 Mt | 2012 | 87,63 Mt |
| 1975 | 157,71 Mt | 1994 | 128,16 Mt | 2013 | 79,53 Mt |
| 1976 | 173,64 Mt | 1995 | 133,41 Mt | 2014 | 78,99 Mt |
| 1977 | 181,97 Mt | 1996 | 136,56 Mt | 2015 | 80,3 Mt |
| 1978 | 197,5 Mt | 1997 | 124,32 Mt | 2016 | 78,71 Mt |
| 1979 | 202,32 Mt | 1998 | 108,99 Mt | 2017 | 81,8 Mt |
| 1980 | 200,15 Mt | 1999 | 93,19 Mt | 2018 | 83 Mt |
| 1981 | 201,07 Mt | 2000 | 97,5 Mt | 2019 | 81,15 Mt |
| 1982 | 200,42 Mt | 2001 | 104,41 Mt | 2020 | 75,7 Mt |
| 1983 | 202,7 Mt | 2002 | 103,4 Mt | 2021 | 80,75 Mt |
| 1984 | 200,07 Mt | 2003 | 107,85 Mt | 2022 | 75,68 Mt |
| 1985 | 199,09 Mt | 2004 | 105,58 Mt | 2023 | 70,25 Mt |
| 1986 | 204,92 Mt | 2005 | 104,49 Mt | 2024 | 70,88 Mt |
| 1987 | 212,28 Mt | 2006 | 110,84 Mt | | |
| 1988 | 216,41 Mt | 2007 | 107,09 Mt | | |
Mostrar tabla de datos
| 1970 | 6,17 t | 1989 | 9,28 t | 2008 | 5,13 t |
| 1971 | 6,15 t | 1990 | 8,09 t | 2009 | 4,21 t |
| 1972 | 6,35 t | 1991 | 6,61 t | 2010 | 4,12 t |
| 1973 | 6,88 t | 1992 | 6,07 t | 2011 | 4,46 t |
| 1974 | 6,93 t | 1993 | 5,76 t | 2012 | 4,37 t |
| 1975 | 7,41 t | 1994 | 5,64 t | 2013 | 3,98 t |
| 1976 | 8,06 t | 1995 | 5,88 t | 2014 | 3,97 t |
| 1977 | 8,36 t | 1996 | 6,04 t | 2015 | 4,05 t |
| 1978 | 9 t | 1997 | 5,51 t | 2016 | 3,99 t |
| 1979 | 9,16 t | 1998 | 4,84 t | 2017 | 4,18 t |
| 1980 | 9,01 t | 1999 | 4,15 t | 2018 | 4,26 t |
| 1981 | 8,99 t | 2000 | 4,34 t | 2019 | 4,19 t |
| 1982 | 8,92 t | 2001 | 4,72 t | 2020 | 3,93 t |
| 1983 | 8,98 t | 2002 | 4,76 t | 2021 | 4,22 t |
| 1984 | 8,84 t | 2003 | 5 t | 2022 | 3,97 t |
| 1985 | 8,76 t | 2004 | 4,92 t | 2023 | 3,69 t |
| 1986 | 8,97 t | 2005 | 4,9 t | 2024 | 3,72 t |
| 1987 | 9,25 t | 2006 | 5,23 t | | |
| 1988 | 9,39 t | 2007 | 5,13 t | | |