Mostrar tabla de datos
| 1970 | 69,07 Mt | 1989 | 91,7 Mt | 2008 | 54,56 Mt |
| 1971 | 69 Mt | 1990 | 80,05 Mt | 2009 | 46,54 Mt |
| 1972 | 71,31 Mt | 1991 | 64,92 Mt | 2010 | 49,51 Mt |
| 1973 | 72,3 Mt | 1992 | 62,02 Mt | 2011 | 54,78 Mt |
| 1974 | 73,16 Mt | 1993 | 62,83 Mt | 2012 | 49,92 Mt |
| 1975 | 78,27 Mt | 1994 | 60,02 Mt | 2013 | 44,45 Mt |
| 1976 | 79,14 Mt | 1995 | 61,37 Mt | 2014 | 47,32 Mt |
| 1977 | 82,15 Mt | 1996 | 61,66 Mt | 2015 | 49,86 Mt |
| 1978 | 88,21 Mt | 1997 | 59,33 Mt | 2016 | 47,13 Mt |
| 1979 | 91,49 Mt | 1998 | 56,85 Mt | 2017 | 49,28 Mt |
| 1980 | 94,61 Mt | 1999 | 50,12 Mt | 2018 | 46,31 Mt |
| 1981 | 90,72 Mt | 2000 | 48,18 Mt | 2019 | 44,64 Mt |
| 1982 | 92,59 Mt | 2001 | 50,42 Mt | 2020 | 39,42 Mt |
| 1983 | 91,65 Mt | 2002 | 47,6 Mt | 2021 | 45,87 Mt |
| 1984 | 90,11 Mt | 2003 | 53,46 Mt | 2022 | 49,44 Mt |
| 1985 | 92,28 Mt | 2004 | 51,46 Mt | 2023 | 36,97 Mt |
| 1986 | 93,38 Mt | 2005 | 52,49 Mt | 2024 | 34,19 Mt |
| 1987 | 93,72 Mt | 2006 | 54,04 Mt | | |
| 1988 | 92,86 Mt | 2007 | 57,64 Mt | | |
Mostrar tabla de datos
| 1970 | 8,14 t | 1989 | 10,33 t | 2008 | 7,28 t |
| 1971 | 8,08 t | 1990 | 9,18 t | 2009 | 6,25 t |
| 1972 | 8,32 t | 1991 | 7,52 t | 2010 | 6,69 t |
| 1973 | 8,39 t | 1992 | 7,26 t | 2011 | 7,46 t |
| 1974 | 8,43 t | 1993 | 7,42 t | 2012 | 6,83 t |
| 1975 | 8,98 t | 1994 | 7,11 t | 2013 | 6,21 t |
| 1976 | 9,04 t | 1995 | 7,3 t | 2014 | 6,69 t |
| 1977 | 9,33 t | 1996 | 7,37 t | 2015 | 7,14 t |
| 1978 | 10,01 t | 1997 | 7,14 t | 2016 | 6,84 t |
| 1979 | 10,37 t | 1998 | 6,89 t | 2017 | 7,24 t |
| 1980 | 10,68 t | 1999 | 6,1 t | 2018 | 6,9 t |
| 1981 | 10,2 t | 2000 | 5,9 t | 2019 | 6,75 t |
| 1982 | 10,38 t | 2001 | 6,3 t | 2020 | 6,02 t |
| 1983 | 10,25 t | 2002 | 6,07 t | 2021 | 7,05 t |
| 1984 | 10,06 t | 2003 | 6,88 t | 2022 | 7,65 t |
| 1985 | 10,3 t | 2004 | 6,67 t | 2023 | 5,73 t |
| 1986 | 10,42 t | 2005 | 6,85 t | 2024 | 5,31 t |
| 1987 | 10,45 t | 2006 | 7,11 t | | |
| 1988 | 10,34 t | 2007 | 7,64 t | | |