Tableau de données
| 1980 | 5,2 Md | 1996 | 4,93 Md | 2012 | 11,6 Md |
| 1981 | 4,76 Md | 1997 | 4,26 Md | 2013 | 12,4 Md |
| 1982 | 4,79 Md | 1998 | 4,4 Md | 2014 | 12,5 Md |
| 1983 | 4,69 Md | 1999 | 4,28 Md | 2015 | 11,3 Md |
| 1984 | 3,91 Md | 2000 | 4,63 Md | 2016 | 11,8 Md |
| 1985 | 3,8 Md | 2001 | 5,44 Md | 2017 | 13,2 Md |
| 1986 | 4,35 Md | 2002 | 5,35 Md | 2018 | 13,8 Md |
| 1987 | 3,21 Md | 2003 | 6,37 Md | 2019 | 14,1 Md |
| 1988 | 3,19 Md | 2004 | 5,07 Md | 2020 | 13,1 Md |
| 1989 | 3,18 Md | 2005 | 5,86 Md | 2021 | 14,4 Md |
| 1990 | 3,93 Md | 2006 | 6,4 Md | 2022 | 15,3 Md |
| 1991 | 3,26 Md | 2007 | 8,53 Md | 2023 | 16 Md |
| 1992 | 3,72 Md | 2008 | 10,7 Md | 2024 | 17,6 Md |
| 1993 | 4,06 Md | 2009 | 9,62 Md | 2025 | 19,6 Md |
| 1994 | 3,52 Md | 2010 | 9,98 Md | 2026 | 21,2 Md |
| 1995 | 3,84 Md | 2011 | 11,6 Md | | |
Tableau de données
| 1980 | 220 Md | 1996 | 4,01 Bn | 2012 | 25,42 Bn |
| 1981 | 259 Md | 1997 | 4,34 Bn | 2013 | 27,42 Bn |
| 1982 | 335 Md | 1998 | 4,79 Bn | 2014 | 30,24 Bn |
| 1983 | 403 Md | 1999 | 5,38 Bn | 2015 | 33,22 Bn |
| 1984 | 450 Md | 2000 | 6,27 Bn | 2016 | 37,64 Bn |
| 1985 | 504 Md | 2001 | 7,17 Bn | 2017 | 41,06 Bn |
| 1986 | 588 Md | 2002 | 7,31 Bn | 2018 | 45,89 Bn |
| 1987 | 687 Md | 2003 | 7,89 Bn | 2019 | 51,04 Bn |
| 1988 | 898 Md | 2004 | 9,47 Bn | 2020 | 49,44 Bn |
| 1989 | 1,02 Bn | 2005 | 11,74 Bn | 2021 | 54,98 Bn |
| 1990 | 1,17 Bn | 2006 | 13,7 Bn | 2022 | 62,84 Bn |
| 1991 | 1,19 Bn | 2007 | 15,97 Bn | 2023 | 71,04 Bn |
| 1992 | 1,38 Bn | 2008 | 18,32 Bn | 2024 | 79,62 Bn |
| 1993 | 1,56 Bn | 2009 | 18,81 Bn | 2025 | 88,58 Bn |
| 1994 | 2,16 Bn | 2010 | 20,86 Bn | 2026 | 98,92 Bn |
| 1995 | 3,27 Bn | 2011 | 23,39 Bn | | |
Tableau de données
| 1980 | 10,24 Bn | 1996 | 10,83 Bn | 2012 | 17,23 Bn |
| 1981 | 9,23 Bn | 1997 | 11,23 Bn | 2013 | 17,63 Bn |
| 1982 | 9,06 Bn | 1998 | 11,67 Bn | 2014 | 18,22 Bn |
| 1983 | 9,14 Bn | 1999 | 12,21 Bn | 2015 | 18,79 Bn |
| 1984 | 9,3 Bn | 2000 | 12,76 Bn | 2016 | 19,54 Bn |
| 1985 | 9,41 Bn | 2001 | 13,52 Bn | 2017 | 20,31 Bn |
| 1986 | 9,59 Bn | 2002 | 11,84 Bn | 2018 | 20,96 Bn |
| 1987 | 9,71 Bn | 2003 | 13 Bn | 2019 | 21,88 Bn |
| 1988 | 10,04 Bn | 2004 | 13,69 Bn | 2020 | 20,32 Bn |
| 1989 | 10,45 Bn | 2005 | 14,34 Bn | 2021 | 21,26 Bn |
| 1990 | 10,77 Bn | 2006 | 15,11 Bn | 2022 | 22,14 Bn |
| 1991 | 10,09 Bn | 2007 | 15,97 Bn | 2023 | 23,08 Bn |
| 1992 | 10,21 Bn | 2008 | 17,05 Bn | 2024 | 24,08 Bn |
| 1993 | 10,43 Bn | 2009 | 16,37 Bn | 2025 | 24,76 Bn |
| 1994 | 10,42 Bn | 2010 | 16,47 Bn | 2026 | 25,66 Bn |
| 1995 | 10,6 Bn | 2011 | 16,73 Bn | | |