Mostrar tabla de datos
| 1970 | 8,9339 Mt | 1989 | 15,1 Mt | 2008 | 19,12 Mt |
| 1971 | 8,5196 Mt | 1990 | 11,23 Mt | 2009 | 21,09 Mt |
| 1972 | 10,37 Mt | 1991 | 11,78 Mt | 2010 | 22,74 Mt |
| 1973 | 11,35 Mt | 1992 | 12,12 Mt | 2011 | 23,65 Mt |
| 1974 | 11,81 Mt | 1993 | 12,14 Mt | 2012 | 24,72 Mt |
| 1975 | 10,9 Mt | 1994 | 11,49 Mt | 2013 | 28,53 Mt |
| 1976 | 7,292 Mt | 1995 | 12,95 Mt | 2014 | 30,89 Mt |
| 1977 | 12,03 Mt | 1996 | 15,68 Mt | 2015 | 33,09 Mt |
| 1978 | 14,22 Mt | 1997 | 16,4 Mt | 2016 | 31,27 Mt |
| 1979 | 14,18 Mt | 1998 | 17,04 Mt | 2017 | 28 Mt |
| 1980 | 14,32 Mt | 1999 | 18,03 Mt | 2018 | 25,81 Mt |
| 1981 | 13,23 Mt | 2000 | 16,51 Mt | 2019 | 27 Mt |
| 1982 | 12,77 Mt | 2001 | 16,19 Mt | 2020 | 20,54 Mt |
| 1983 | 13,22 Mt | 2002 | 15,92 Mt | 2021 | 25,56 Mt |
| 1984 | 13,36 Mt | 2003 | 17,33 Mt | 2022 | 26,68 Mt |
| 1985 | 14,1 Mt | 2004 | 17,69 Mt | 2023 | 27,34 Mt |
| 1986 | 14,25 Mt | 2005 | 15,64 Mt | 2024 | 28,1 Mt |
| 1987 | 14,5 Mt | 2006 | 16,32 Mt | | |
| 1988 | 14,94 Mt | 2007 | 17,06 Mt | | |
Mostrar tabla de datos
| 1970 | 1,53 t | 1989 | 1,34 t | 2008 | 0,89 t |
| 1971 | 1,42 t | 1990 | 0,97 t | 2009 | 0,94 t |
| 1972 | 1,68 t | 1991 | 0,98 t | 2010 | 0,98 t |
| 1973 | 1,78 t | 1992 | 0,98 t | 2011 | 0,98 t |
| 1974 | 1,79 t | 1993 | 0,95 t | 2012 | 0,98 t |
| 1975 | 1,59 t | 1994 | 0,87 t | 2013 | 1,09 t |
| 1976 | 1,03 t | 1995 | 0,95 t | 2014 | 1,14 t |
| 1977 | 1,64 t | 1996 | 1,11 t | 2015 | 1,18 t |
| 1978 | 1,88 t | 1997 | 1,12 t | 2016 | 1,07 t |
| 1979 | 1,81 t | 1998 | 1,12 t | 2017 | 0,93 t |
| 1980 | 1,76 t | 1999 | 1,15 t | 2018 | 0,82 t |
| 1981 | 1,57 t | 2000 | 1,02 t | 2019 | 0,83 t |
| 1982 | 1,46 t | 2001 | 0,97 t | 2020 | 0,61 t |
| 1983 | 1,46 t | 2002 | 0,92 t | 2021 | 0,74 t |
| 1984 | 1,42 t | 2003 | 0,97 t | 2022 | 0,75 t |
| 1985 | 1,44 t | 2004 | 0,95 t | 2023 | 0,74 t |
| 1986 | 1,41 t | 2005 | 0,81 t | 2024 | 0,74 t |
| 1987 | 1,38 t | 2006 | 0,82 t | | |
| 1988 | 1,38 t | 2007 | 0,82 t | | |