Tableau de données
| 1980 | 857 Md | 1996 | 2,51 Bn | 2012 | 3,6 Bn |
| 1981 | 721 Md | 1997 | 2,22 Bn | 2013 | 3,81 Bn |
| 1982 | 696 Md | 1998 | 2,25 Bn | 2014 | 3,97 Bn |
| 1983 | 694 Md | 1999 | 2,22 Bn | 2015 | 3,43 Bn |
| 1984 | 654 Md | 2000 | 1,97 Bn | 2016 | 3,54 Bn |
| 1985 | 663 Md | 2001 | 1,97 Bn | 2017 | 3,76 Bn |
| 1986 | 948 Md | 2002 | 2,1 Bn | 2018 | 4,06 Bn |
| 1987 | 1,18 Bn | 2003 | 2,53 Bn | 2019 | 3,96 Bn |
| 1988 | 1,27 Bn | 2004 | 2,85 Bn | 2020 | 3,94 Bn |
| 1989 | 1,26 Bn | 2005 | 2,89 Bn | 2021 | 4,36 Bn |
| 1990 | 1,6 Bn | 2006 | 3,05 Bn | 2022 | 4,2 Bn |
| 1991 | 1,88 Bn | 2007 | 3,48 Bn | 2023 | 4,56 Bn |
| 1992 | 2,15 Bn | 2008 | 3,81 Bn | 2024 | 4,68 Bn |
| 1993 | 2,08 Bn | 2009 | 3,47 Bn | 2025 | 5,05 Bn |
| 1994 | 2,22 Bn | 2010 | 3,47 Bn | 2026 | 5,45 Bn |
| 1995 | 2,6 Bn | 2011 | 3,82 Bn | | |
Tableau de données
| 1980 | 795 Md | 1996 | 1,93 Bn | 2012 | 2,8 Bn |
| 1981 | 830 Md | 1997 | 1,97 Bn | 2013 | 2,87 Bn |
| 1982 | 863 Md | 1998 | 2,02 Bn | 2014 | 2,98 Bn |
| 1983 | 905 Md | 1999 | 2,08 Bn | 2015 | 3,09 Bn |
| 1984 | 949 Md | 2000 | 2,13 Bn | 2016 | 3,2 Bn |
| 1985 | 991 Md | 2001 | 2,2 Bn | 2017 | 3,33 Bn |
| 1986 | 1,05 Bn | 2002 | 2,22 Bn | 2018 | 3,43 Bn |
| 1987 | 1,08 Bn | 2003 | 2,24 Bn | 2019 | 3,54 Bn |
| 1988 | 1,14 Bn | 2004 | 2,29 Bn | 2020 | 3,45 Bn |
| 1989 | 1,21 Bn | 2005 | 2,33 Bn | 2021 | 3,68 Bn |
| 1990 | 1,32 Bn | 2006 | 2,43 Bn | 2022 | 3,99 Bn |
| 1991 | 1,59 Bn | 2007 | 2,54 Bn | 2023 | 4,22 Bn |
| 1992 | 1,71 Bn | 2008 | 2,59 Bn | 2024 | 4,33 Bn |
| 1993 | 1,76 Bn | 2009 | 2,49 Bn | 2025 | 4,47 Bn |
| 1994 | 1,84 Bn | 2010 | 2,62 Bn | 2026 | 4,62 Bn |
| 1995 | 1,9 Bn | 2011 | 2,75 Bn | | |
Tableau de données
| 1980 | 1,85 Bn | 1996 | 2,59 Bn | 2012 | 3,22 Bn |
| 1981 | 1,85 Bn | 1997 | 2,63 Bn | 2013 | 3,23 Bn |
| 1982 | 1,83 Bn | 1998 | 2,69 Bn | 2014 | 3,3 Bn |
| 1983 | 1,86 Bn | 1999 | 2,75 Bn | 2015 | 3,35 Bn |
| 1984 | 1,91 Bn | 2000 | 2,83 Bn | 2016 | 3,43 Bn |
| 1985 | 1,96 Bn | 2001 | 2,87 Bn | 2017 | 3,52 Bn |
| 1986 | 2 Bn | 2002 | 2,87 Bn | 2018 | 3,56 Bn |
| 1987 | 2,03 Bn | 2003 | 2,85 Bn | 2019 | 3,6 Bn |
| 1988 | 2,11 Bn | 2004 | 2,88 Bn | 2020 | 3,45 Bn |
| 1989 | 2,19 Bn | 2005 | 2,91 Bn | 2021 | 3,59 Bn |
| 1990 | 2,32 Bn | 2006 | 3,02 Bn | 2022 | 3,65 Bn |
| 1991 | 2,43 Bn | 2007 | 3,11 Bn | 2023 | 3,62 Bn |
| 1992 | 2,48 Bn | 2008 | 3,14 Bn | 2024 | 3,6 Bn |
| 1993 | 2,46 Bn | 2009 | 2,96 Bn | 2025 | 3,61 Bn |
| 1994 | 2,52 Bn | 2010 | 3,09 Bn | 2026 | 3,64 Bn |
| 1995 | 2,56 Bn | 2011 | 3,2 Bn | | |