Mostrar tabla de datos
| 1970 | 41,35 Mt | 1989 | 43,6 Mt | 2008 | 45,98 Mt |
| 1971 | 43,31 Mt | 1990 | 44,76 Mt | 2009 | 44,62 Mt |
| 1972 | 44,02 Mt | 1991 | 47,07 Mt | 2010 | 46,32 Mt |
| 1973 | 47,65 Mt | 1992 | 47,03 Mt | 2011 | 42,29 Mt |
| 1974 | 42,96 Mt | 1993 | 44,72 Mt | 2012 | 43,6 Mt |
| 1975 | 40,55 Mt | 1994 | 43,79 Mt | 2013 | 44,61 Mt |
| 1976 | 42,24 Mt | 1995 | 44,58 Mt | 2014 | 40,9 Mt |
| 1977 | 42,66 Mt | 1996 | 45,13 Mt | 2015 | 40,22 Mt |
| 1978 | 43,86 Mt | 1997 | 43,83 Mt | 2016 | 40,79 Mt |
| 1979 | 42,54 Mt | 1998 | 45,3 Mt | 2017 | 39,82 Mt |
| 1980 | 43,3 Mt | 1999 | 45,56 Mt | 2018 | 38,52 Mt |
| 1981 | 40,93 Mt | 2000 | 44,76 Mt | 2019 | 38,4 Mt |
| 1982 | 38,71 Mt | 2001 | 46,19 Mt | 2020 | 35,94 Mt |
| 1983 | 42,81 Mt | 2002 | 44,58 Mt | 2021 | 37,63 Mt |
| 1984 | 42,31 Mt | 2003 | 45,86 Mt | 2022 | 34,48 Mt |
| 1985 | 45,51 Mt | 2004 | 46,4 Mt | 2023 | 33,67 Mt |
| 1986 | 45,42 Mt | 2005 | 47,03 Mt | 2024 | 33,73 Mt |
| 1987 | 43,83 Mt | 2006 | 46,61 Mt | | |
| 1988 | 43,79 Mt | 2007 | 44,62 Mt | | |
Mostrar tabla de datos
| 1970 | 6,69 t | 1989 | 6,56 t | 2008 | 6,01 t |
| 1971 | 6,97 t | 1990 | 6,66 t | 2009 | 5,76 t |
| 1972 | 7,03 t | 1991 | 6,92 t | 2010 | 5,92 t |
| 1973 | 7,55 t | 1992 | 6,84 t | 2011 | 5,34 t |
| 1974 | 6,77 t | 1993 | 6,45 t | 2012 | 5,45 t |
| 1975 | 6,4 t | 1994 | 6,26 t | 2013 | 5,51 t |
| 1976 | 6,7 t | 1995 | 6,33 t | 2014 | 4,99 t |
| 1977 | 6,79 t | 1996 | 6,38 t | 2015 | 4,86 t |
| 1978 | 6,98 t | 1997 | 6,18 t | 2016 | 4,87 t |
| 1979 | 6,76 t | 1998 | 6,37 t | 2017 | 4,71 t |
| 1980 | 6,85 t | 1999 | 6,38 t | 2018 | 4,52 t |
| 1981 | 6,44 t | 2000 | 6,23 t | 2019 | 4,48 t |
| 1982 | 6,06 t | 2001 | 6,39 t | 2020 | 4,16 t |
| 1983 | 6,67 t | 2002 | 6,12 t | 2021 | 4,32 t |
| 1984 | 6,57 t | 2003 | 6,25 t | 2022 | 3,93 t |
| 1985 | 7,03 t | 2004 | 6,28 t | 2023 | 3,79 t |
| 1986 | 6,98 t | 2005 | 6,32 t | 2024 | 3,75 t |
| 1987 | 6,7 t | 2006 | 6,23 t | | |
| 1988 | 6,64 t | 2007 | 5,91 t | | |