Mostrar tabla de datos
| 1970 | 60,17 Mt | 1989 | 97,52 Mt | 2008 | 64,77 Mt |
| 1971 | 60,26 Mt | 1990 | 105,53 Mt | 2009 | 61,61 Mt |
| 1972 | 64,37 Mt | 1991 | 101,59 Mt | 2010 | 66,12 Mt |
| 1973 | 70,35 Mt | 1992 | 91,84 Mt | 2011 | 62,96 Mt |
| 1974 | 76,15 Mt | 1993 | 79,29 Mt | 2012 | 64,27 Mt |
| 1975 | 81,83 Mt | 1994 | 67,59 Mt | 2013 | 64,43 Mt |
| 1976 | 85,36 Mt | 1995 | 60,43 Mt | 2014 | 63,97 Mt |
| 1977 | 88,28 Mt | 1996 | 61,36 Mt | 2015 | 59,17 Mt |
| 1978 | 91,88 Mt | 1997 | 61,81 Mt | 2016 | 59,06 Mt |
| 1979 | 95,08 Mt | 1998 | 60,31 Mt | 2017 | 60,22 Mt |
| 1980 | 98,64 Mt | 1999 | 58,16 Mt | 2018 | 63,45 Mt |
| 1981 | 100,53 Mt | 2000 | 56,26 Mt | 2019 | 61,25 Mt |
| 1982 | 101,47 Mt | 2001 | 55 Mt | 2020 | 58,16 Mt |
| 1983 | 102,01 Mt | 2002 | 55,19 Mt | 2021 | 58,64 Mt |
| 1984 | 101,54 Mt | 2003 | 55,83 Mt | 2022 | 55,89 Mt |
| 1985 | 101,54 Mt | 2004 | 59,19 Mt | 2023 | 53,82 Mt |
| 1986 | 101,99 Mt | 2005 | 60,02 Mt | 2024 | 54,22 Mt |
| 1987 | 102,59 Mt | 2006 | 62,46 Mt | | |
| 1988 | 101 Mt | 2007 | 61,06 Mt | | |
Mostrar tabla de datos
| 1970 | 6,66 t | 1989 | 9,59 t | 2008 | 6,8 t |
| 1971 | 6,61 t | 1990 | 10,36 t | 2009 | 6,48 t |
| 1972 | 7,01 t | 1991 | 9,97 t | 2010 | 6,97 t |
| 1973 | 7,6 t | 1992 | 8,99 t | 2011 | 6,65 t |
| 1974 | 8,17 t | 1993 | 7,74 t | 2012 | 6,8 t |
| 1975 | 8,74 t | 1994 | 6,61 t | 2013 | 6,82 t |
| 1976 | 9,07 t | 1995 | 5,93 t | 2014 | 6,77 t |
| 1977 | 9,33 t | 1996 | 6,04 t | 2015 | 6,25 t |
| 1978 | 9,65 t | 1997 | 6,11 t | 2016 | 6,24 t |
| 1979 | 9,92 t | 1998 | 5,99 t | 2017 | 6,37 t |
| 1980 | 10,23 t | 1999 | 5,8 t | 2018 | 6,72 t |
| 1981 | 10,35 t | 2000 | 5,64 t | 2019 | 6,5 t |
| 1982 | 10,38 t | 2001 | 5,54 t | 2020 | 6,2 t |
| 1983 | 10,36 t | 2002 | 5,59 t | 2021 | 6,3 t |
| 1984 | 10,25 t | 2003 | 5,7 t | 2022 | 6,06 t |
| 1985 | 10,18 t | 2004 | 6,08 t | 2023 | 5,86 t |
| 1986 | 10,16 t | 2005 | 6,21 t | 2024 | 5,94 t |
| 1987 | 10,15 t | 2006 | 6,5 t | | |
| 1988 | 9,96 t | 2007 | 6,39 t | | |