Tableau de données
| 1980 | 695 Md | 1996 | 1,6 Bn | 2012 | 2,68 Bn |
| 1981 | 613 Md | 1997 | 1,45 Bn | 2013 | 2,82 Bn |
| 1982 | 581 Md | 1998 | 1,5 Bn | 2014 | 2,86 Bn |
| 1983 | 556 Md | 1999 | 1,49 Bn | 2015 | 2,44 Bn |
| 1984 | 527 Md | 2000 | 1,36 Bn | 2016 | 2,47 Bn |
| 1985 | 552 Md | 2001 | 1,37 Bn | 2017 | 2,59 Bn |
| 1986 | 766 Md | 2002 | 1,49 Bn | 2018 | 2,78 Bn |
| 1987 | 927 Md | 2003 | 1,83 Bn | 2019 | 2,72 Bn |
| 1988 | 1,01 Bn | 2004 | 2,11 Bn | 2020 | 2,65 Bn |
| 1989 | 1,02 Bn | 2005 | 2,19 Bn | 2021 | 2,97 Bn |
| 1990 | 1,26 Bn | 2006 | 2,32 Bn | 2022 | 2,8 Bn |
| 1991 | 1,26 Bn | 2007 | 2,66 Bn | 2023 | 3,06 Bn |
| 1992 | 1,39 Bn | 2008 | 2,93 Bn | 2024 | 3,16 Bn |
| 1993 | 1,32 Bn | 2009 | 2,7 Bn | 2025 | 3,37 Bn |
| 1994 | 1,39 Bn | 2010 | 2,65 Bn | 2026 | 3,6 Bn |
| 1995 | 1,6 Bn | 2011 | 2,87 Bn | | |
Tableau de données
| 1980 | 447 Md | 1996 | 1,25 Bn | 2012 | 2,09 Bn |
| 1981 | 505 Md | 1997 | 1,29 Bn | 2013 | 2,12 Bn |
| 1982 | 579 Md | 1998 | 1,35 Bn | 2014 | 2,15 Bn |
| 1983 | 643 Md | 1999 | 1,4 Bn | 2015 | 2,2 Bn |
| 1984 | 700 Md | 2000 | 1,47 Bn | 2016 | 2,23 Bn |
| 1985 | 750 Md | 2001 | 1,53 Bn | 2017 | 2,29 Bn |
| 1986 | 808 Md | 2002 | 1,58 Bn | 2018 | 2,36 Bn |
| 1987 | 849 Md | 2003 | 1,62 Bn | 2019 | 2,43 Bn |
| 1988 | 918 Md | 2004 | 1,7 Bn | 2020 | 2,32 Bn |
| 1989 | 989 Md | 2005 | 1,76 Bn | 2021 | 2,51 Bn |
| 1990 | 1,04 Bn | 2006 | 1,85 Bn | 2022 | 2,65 Bn |
| 1991 | 1,08 Bn | 2007 | 1,94 Bn | 2023 | 2,83 Bn |
| 1992 | 1,12 Bn | 2008 | 1,99 Bn | 2024 | 2,92 Bn |
| 1993 | 1,13 Bn | 2009 | 1,94 Bn | 2025 | 2,98 Bn |
| 1994 | 1,17 Bn | 2010 | 2 Bn | 2026 | 3,05 Bn |
| 1995 | 1,21 Bn | 2011 | 2,06 Bn | | |
Tableau de données
| 1980 | 1,22 Bn | 1996 | 1,7 Bn | 2012 | 2,28 Bn |
| 1981 | 1,24 Bn | 1997 | 1,75 Bn | 2013 | 2,3 Bn |
| 1982 | 1,27 Bn | 1998 | 1,81 Bn | 2014 | 2,32 Bn |
| 1983 | 1,28 Bn | 1999 | 1,87 Bn | 2015 | 2,35 Bn |
| 1984 | 1,31 Bn | 2000 | 1,95 Bn | 2016 | 2,36 Bn |
| 1985 | 1,33 Bn | 2001 | 1,98 Bn | 2017 | 2,42 Bn |
| 1986 | 1,36 Bn | 2002 | 2,01 Bn | 2018 | 2,46 Bn |
| 1987 | 1,39 Bn | 2003 | 2,03 Bn | 2019 | 2,51 Bn |
| 1988 | 1,46 Bn | 2004 | 2,08 Bn | 2020 | 2,32 Bn |
| 1989 | 1,52 Bn | 2005 | 2,12 Bn | 2021 | 2,47 Bn |
| 1990 | 1,57 Bn | 2006 | 2,18 Bn | 2022 | 2,54 Bn |
| 1991 | 1,59 Bn | 2007 | 2,23 Bn | 2023 | 2,59 Bn |
| 1992 | 1,61 Bn | 2008 | 2,24 Bn | 2024 | 2,61 Bn |
| 1993 | 1,6 Bn | 2009 | 2,18 Bn | 2025 | 2,64 Bn |
| 1994 | 1,64 Bn | 2010 | 2,22 Bn | 2026 | 2,66 Bn |
| 1995 | 1,68 Bn | 2011 | 2,27 Bn | | |