Tableau de données
| 1980 | 605 Md | 1996 | 1,43 Bn | 2012 | 2,72 Bn |
| 1981 | 589 Md | 1997 | 1,57 Bn | 2013 | 2,8 Bn |
| 1982 | 560 Md | 1998 | 1,66 Bn | 2014 | 3,09 Bn |
| 1983 | 534 Md | 1999 | 1,69 Bn | 2015 | 2,95 Bn |
| 1984 | 506 Md | 2000 | 1,67 Bn | 2016 | 2,72 Bn |
| 1985 | 538 Md | 2001 | 1,66 Bn | 2017 | 2,7 Bn |
| 1986 | 656 Md | 2002 | 1,79 Bn | 2018 | 2,9 Bn |
| 1987 | 816 Md | 2003 | 2,06 Bn | 2019 | 2,88 Bn |
| 1988 | 993 Md | 2004 | 2,43 Bn | 2020 | 2,73 Bn |
| 1989 | 1,01 Bn | 2005 | 2,55 Bn | 2021 | 3,2 Bn |
| 1990 | 1,2 Bn | 2006 | 2,72 Bn | 2022 | 3,19 Bn |
| 1991 | 1,25 Bn | 2007 | 3,11 Bn | 2023 | 3,42 Bn |
| 1992 | 1,29 Bn | 2008 | 2,98 Bn | 2024 | 3,7 Bn |
| 1993 | 1,16 Bn | 2009 | 2,44 Bn | 2025 | 4 Bn |
| 1994 | 1,25 Bn | 2010 | 2,5 Bn | 2026 | 4,26 Bn |
| 1995 | 1,35 Bn | 2011 | 2,68 Bn | | |
Tableau de données
| 1980 | 260 Md | 1996 | 914 Md | 2012 | 1,72 Bn |
| 1981 | 291 Md | 1997 | 959 Md | 2013 | 1,79 Bn |
| 1982 | 320 Md | 1998 | 1 Bn | 2014 | 1,88 Bn |
| 1983 | 352 Md | 1999 | 1,05 Bn | 2015 | 1,93 Bn |
| 1984 | 379 Md | 2000 | 1,1 Bn | 2016 | 2 Bn |
| 1985 | 415 Md | 2001 | 1,15 Bn | 2017 | 2,1 Bn |
| 1986 | 448 Md | 2002 | 1,19 Bn | 2018 | 2,17 Bn |
| 1987 | 498 Md | 2003 | 1,26 Bn | 2019 | 2,25 Bn |
| 1988 | 557 Md | 2004 | 1,33 Bn | 2020 | 2,12 Bn |
| 1989 | 617 Md | 2005 | 1,4 Bn | 2021 | 2,32 Bn |
| 1990 | 673 Md | 2006 | 1,48 Bn | 2022 | 2,58 Bn |
| 1991 | 708 Md | 2007 | 1,55 Bn | 2023 | 2,75 Bn |
| 1992 | 733 Md | 2008 | 1,6 Bn | 2024 | 2,89 Bn |
| 1993 | 772 Md | 2009 | 1,56 Bn | 2025 | 3,04 Bn |
| 1994 | 814 Md | 2010 | 1,62 Bn | 2026 | 3,14 Bn |
| 1995 | 855 Md | 2011 | 1,67 Bn | | |
Tableau de données
| 1980 | 1,14 Bn | 1996 | 1,67 Bn | 2012 | 2,3 Bn |
| 1981 | 1,13 Bn | 1997 | 1,75 Bn | 2013 | 2,34 Bn |
| 1982 | 1,16 Bn | 1998 | 1,8 Bn | 2014 | 2,42 Bn |
| 1983 | 1,21 Bn | 1999 | 1,86 Bn | 2015 | 2,47 Bn |
| 1984 | 1,23 Bn | 2000 | 1,94 Bn | 2016 | 2,52 Bn |
| 1985 | 1,28 Bn | 2001 | 1,99 Bn | 2017 | 2,6 Bn |
| 1986 | 1,32 Bn | 2002 | 2,02 Bn | 2018 | 2,64 Bn |
| 1987 | 1,4 Bn | 2003 | 2,09 Bn | 2019 | 2,67 Bn |
| 1988 | 1,47 Bn | 2004 | 2,13 Bn | 2020 | 2,4 Bn |
| 1989 | 1,51 Bn | 2005 | 2,19 Bn | 2021 | 2,61 Bn |
| 1990 | 1,52 Bn | 2006 | 2,24 Bn | 2022 | 2,74 Bn |
| 1991 | 1,49 Bn | 2007 | 2,31 Bn | 2023 | 2,75 Bn |
| 1992 | 1,5 Bn | 2008 | 2,31 Bn | 2024 | 2,78 Bn |
| 1993 | 1,53 Bn | 2009 | 2,2 Bn | 2025 | 2,82 Bn |
| 1994 | 1,58 Bn | 2010 | 2,25 Bn | 2026 | 2,84 Bn |
| 1995 | 1,62 Bn | 2011 | 2,27 Bn | | |