Mostrar tabla de datos
| 1970 | 20,66 Mt | 1989 | 31,27 Mt | 2008 | 46,28 Mt |
| 1971 | 23,14 Mt | 1990 | 32,34 Mt | 2009 | 41,17 Mt |
| 1972 | 22,77 Mt | 1991 | 32,87 Mt | 2010 | 40,92 Mt |
| 1973 | 22,34 Mt | 1992 | 32,77 Mt | 2011 | 37,14 Mt |
| 1974 | 24,17 Mt | 1993 | 33 Mt | 2012 | 37,6 Mt |
| 1975 | 22,71 Mt | 1994 | 34,22 Mt | 2013 | 36,33 Mt |
| 1976 | 23,28 Mt | 1995 | 34,79 Mt | 2014 | 36,14 Mt |
| 1977 | 24,87 Mt | 1996 | 36,11 Mt | 2015 | 37,65 Mt |
| 1978 | 24,67 Mt | 1997 | 37,36 Mt | 2016 | 39,51 Mt |
| 1979 | 29,02 Mt | 1998 | 39,78 Mt | 2017 | 38,26 Mt |
| 1980 | 27,89 Mt | 1999 | 41,22 Mt | 2018 | 38,03 Mt |
| 1981 | 27,67 Mt | 2000 | 43,83 Mt | 2019 | 36,37 Mt |
| 1982 | 27,38 Mt | 2001 | 46,05 Mt | 2020 | 34,29 Mt |
| 1983 | 26,97 Mt | 2002 | 44,98 Mt | 2021 | 36,38 Mt |
| 1984 | 26,99 Mt | 2003 | 44,47 Mt | 2022 | 35,69 Mt |
| 1985 | 28,59 Mt | 2004 | 44,99 Mt | 2023 | 32,86 Mt |
| 1986 | 29,55 Mt | 2005 | 47,07 Mt | 2024 | 32,57 Mt |
| 1987 | 31,11 Mt | 2006 | 47,69 Mt | | |
| 1988 | 30,23 Mt | 2007 | 46,94 Mt | | |
Mostrar tabla de datos
| 1970 | 6,99 t | 1989 | 8,91 t | 2008 | 10,31 t |
| 1971 | 7,73 t | 1990 | 9,2 t | 2009 | 9,08 t |
| 1972 | 7,5 t | 1991 | 9,3 t | 2010 | 8,97 t |
| 1973 | 7,24 t | 1992 | 9,21 t | 2011 | 8,11 t |
| 1974 | 7,7 t | 1993 | 9,23 t | 2012 | 8,18 t |
| 1975 | 7,12 t | 1994 | 9,53 t | 2013 | 7,86 t |
| 1976 | 7,19 t | 1995 | 9,64 t | 2014 | 7,76 t |
| 1977 | 7,58 t | 1996 | 9,93 t | 2015 | 8,01 t |
| 1978 | 7,41 t | 1997 | 10,17 t | 2016 | 8,3 t |
| 1979 | 8,6 t | 1998 | 10,72 t | 2017 | 7,93 t |
| 1980 | 8,17 t | 1999 | 10,98 t | 2018 | 7,76 t |
| 1981 | 8,01 t | 2000 | 11,52 t | 2019 | 7,31 t |
| 1982 | 7,85 t | 2001 | 11,91 t | 2020 | 6,8 t |
| 1983 | 7,68 t | 2002 | 11,44 t | 2021 | 7,12 t |
| 1984 | 7,64 t | 2003 | 11,13 t | 2022 | 6,85 t |
| 1985 | 8,08 t | 2004 | 11,05 t | 2023 | 6,19 t |
| 1986 | 8,35 t | 2005 | 11,32 t | 2024 | 6,04 t |
| 1987 | 8,79 t | 2006 | 11,16 t | | |
| 1988 | 8,58 t | 2007 | 10,67 t | | |