Mostrar tabla de datos
| 1970 | 28,94 Mt | 1989 | 76,43 Mt | 2008 | 101,84 Mt |
| 1971 | 29,99 Mt | 1990 | 77,91 Mt | 2009 | 96,22 Mt |
| 1972 | 36,82 Mt | 1991 | 77,94 Mt | 2010 | 89,1 Mt |
| 1973 | 39,38 Mt | 1992 | 80,07 Mt | 2011 | 86,14 Mt |
| 1974 | 38,6 Mt | 1993 | 79,59 Mt | 2012 | 81,56 Mt |
| 1975 | 40,6 Mt | 1994 | 81,21 Mt | 2013 | 73,88 Mt |
| 1976 | 45,55 Mt | 1995 | 84,26 Mt | 2014 | 71,01 Mt |
| 1977 | 47,77 Mt | 1996 | 84,25 Mt | 2015 | 69,45 Mt |
| 1978 | 50,39 Mt | 1997 | 85,2 Mt | 2016 | 68,16 Mt |
| 1979 | 53,3 Mt | 1998 | 88,66 Mt | 2017 | 68,38 Mt |
| 1980 | 53,41 Mt | 1999 | 88,9 Mt | 2018 | 66,54 Mt |
| 1981 | 53,1 Mt | 2000 | 96,07 Mt | 2019 | 61,49 Mt |
| 1982 | 54,23 Mt | 2001 | 98,12 Mt | 2020 | 52,36 Mt |
| 1983 | 57,72 Mt | 2002 | 98,09 Mt | 2021 | 53,72 Mt |
| 1984 | 59,04 Mt | 2003 | 101,85 Mt | 2022 | 55,12 Mt |
| 1985 | 62,46 Mt | 2004 | 101,59 Mt | 2023 | 51,24 Mt |
| 1986 | 62,05 Mt | 2005 | 103,64 Mt | 2024 | 52,51 Mt |
| 1987 | 67,24 Mt | 2006 | 102,39 Mt | | |
| 1988 | 71,74 Mt | 2007 | 106,01 Mt | | |
Mostrar tabla de datos
| 1970 | 3,29 t | 1989 | 7,57 t | 2008 | 9,19 t |
| 1971 | 3,4 t | 1990 | 7,64 t | 2009 | 8,66 t |
| 1972 | 4,14 t | 1991 | 7,55 t | 2010 | 8,01 t |
| 1973 | 4,41 t | 1992 | 7,7 t | 2011 | 7,76 t |
| 1974 | 4,31 t | 1993 | 7,61 t | 2012 | 7,38 t |
| 1975 | 4,49 t | 1994 | 7,73 t | 2013 | 6,74 t |
| 1976 | 4,96 t | 1995 | 7,98 t | 2014 | 6,52 t |
| 1977 | 5,13 t | 1996 | 7,94 t | 2015 | 6,42 t |
| 1978 | 5,34 t | 1997 | 7,99 t | 2016 | 6,33 t |
| 1979 | 5,58 t | 1998 | 8,27 t | 2017 | 6,36 t |
| 1980 | 5,54 t | 1999 | 8,26 t | 2018 | 6,2 t |
| 1981 | 5,46 t | 2000 | 8,89 t | 2019 | 5,74 t |
| 1982 | 5,54 t | 2001 | 9,03 t | 2020 | 4,89 t |
| 1983 | 5,86 t | 2002 | 9 t | 2021 | 5,08 t |
| 1984 | 5,97 t | 2003 | 9,32 t | 2022 | 5,28 t |
| 1985 | 6,29 t | 2004 | 9,27 t | 2023 | 4,92 t |
| 1986 | 6,23 t | 2005 | 9,43 t | 2024 | 5,05 t |
| 1987 | 6,72 t | 2006 | 9,29 t | | |
| 1988 | 7,15 t | 2007 | 9,59 t | | |