Tableau de données
| 1980 | 2,73 Md | 1996 | 1,35 Md | 2012 | 12,3 Md |
| 1981 | 2,85 Md | 1997 | 1,18 Md | 2013 | 12,6 Md |
| 1982 | 2,96 Md | 1998 | 1,13 Md | 2014 | 12,2 Md |
| 1983 | 3,07 Md | 1999 | 1,06 Md | 2015 | 11,6 Md |
| 1984 | 2,84 Md | 2000 | 1,14 Md | 2016 | 11,2 Md |
| 1985 | 3,29 Md | 2001 | 1,27 Md | 2017 | 11,5 Md |
| 1986 | 3,64 Md | 2002 | 1,4 Md | 2018 | 13,2 Md |
| 1987 | 4,09 Md | 2003 | 1,6 Md | 2019 | 14,2 Md |
| 1988 | 4,1 Md | 2004 | 1,99 Md | 2020 | 13,3 Md |
| 1989 | 4,28 Md | 2005 | 2,52 Md | 2021 | 15,3 Md |
| 1990 | 2,68 Md | 2006 | 3,41 Md | 2022 | 17,1 Md |
| 1991 | 2,82 Md | 2007 | 4,24 Md | 2023 | 20,3 Md |
| 1992 | 1,57 Md | 2008 | 5,62 Md | 2024 | 23,8 Md |
| 1993 | 771 M | 2009 | 4,58 Md | 2025 | 25,4 Md |
| 1994 | 926 M | 2010 | 7,19 Md | 2026 | 28,5 Md |
| 1995 | 1,45 Md | 2011 | 10,4 Md | | |
Tableau de données
| 1980 | 8,07 Md | 1996 | 738 Md | 2012 | 16,69 Bn |
| 1981 | 8,88 Md | 1997 | 933 Md | 2013 | 19,17 Bn |
| 1982 | 9,81 Md | 1998 | 945 Md | 2014 | 22,23 Bn |
| 1983 | 10,5 Md | 1999 | 1,08 Bn | 2015 | 22,89 Bn |
| 1984 | 10,8 Md | 2000 | 1,22 Bn | 2016 | 23,93 Bn |
| 1985 | 11,2 Md | 2001 | 1,39 Bn | 2017 | 28,01 Bn |
| 1986 | 11,1 Md | 2002 | 1,55 Bn | 2018 | 32,58 Bn |
| 1987 | 11,6 Md | 2003 | 1,83 Bn | 2019 | 37,84 Bn |
| 1988 | 12,3 Md | 2004 | 2,36 Bn | 2020 | 37,45 Bn |
| 1989 | 12,8 Md | 2005 | 3,04 Bn | 2021 | 43,56 Bn |
| 1990 | 12,5 Md | 2006 | 4,03 Bn | 2022 | 53,85 Bn |
| 1991 | 22,6 Md | 2007 | 4,96 Bn | 2023 | 70,44 Bn |
| 1992 | 56,1 Md | 2008 | 6,56 Bn | 2024 | 80,66 Bn |
| 1993 | 228 Md | 2009 | 6,59 Bn | 2025 | 89,94 Bn |
| 1994 | 382 Md | 2010 | 9,76 Bn | 2026 | 103,57 Bn |
| 1995 | 651 Md | 2011 | 13,17 Bn | | |
Tableau de données
| 1980 | 4,59 Bn | 1996 | 6,85 Bn | 2012 | 18,56 Bn |
| 1981 | 4,98 Bn | 1997 | 7,12 Bn | 2013 | 20,72 Bn |
| 1982 | 5,39 Bn | 1998 | 7,36 Bn | 2014 | 22,36 Bn |
| 1983 | 5,71 Bn | 1999 | 7,58 Bn | 2015 | 22,89 Bn |
| 1984 | 6,04 Bn | 2000 | 7,67 Bn | 2016 | 23,24 Bn |
| 1985 | 6,39 Bn | 2001 | 8,02 Bn | 2017 | 24,55 Bn |
| 1986 | 6,99 Bn | 2002 | 8,45 Bn | 2018 | 26,45 Bn |
| 1987 | 7,24 Bn | 2003 | 9,07 Bn | 2019 | 27,93 Bn |
| 1988 | 7,61 Bn | 2004 | 9,92 Bn | 2020 | 26,66 Bn |
| 1989 | 7,93 Bn | 2005 | 10,57 Bn | 2021 | 27,09 Bn |
| 1990 | 7,73 Bn | 2006 | 11,43 Bn | 2022 | 28,46 Bn |
| 1991 | 7,02 Bn | 2007 | 12,43 Bn | 2023 | 30,57 Bn |
| 1992 | 6,37 Bn | 2008 | 13,41 Bn | 2024 | 32,13 Bn |
| 1993 | 6,17 Bn | 2009 | 13,13 Bn | 2025 | 34,33 Bn |
| 1994 | 6,3 Bn | 2010 | 14,09 Bn | 2026 | 36,14 Bn |
| 1995 | 6,7 Bn | 2011 | 16,52 Bn | | |