Tableau de données
| 1980 | 8,73 Md | 1996 | 10,5 Md | 2012 | 144 Md |
| 1981 | 8,17 Md | 1997 | 12,3 Md | 2013 | 154 Md |
| 1982 | 8,17 Md | 1998 | 10,5 Md | 2014 | 164 Md |
| 1983 | 8,51 Md | 1999 | 9,9 Md | 2015 | 132 Md |
| 1984 | 9,03 Md | 2000 | 12,6 Md | 2016 | 116 Md |
| 1985 | 11,1 Md | 2001 | 12,4 Md | 2017 | 142 Md |
| 1986 | 10,4 Md | 2002 | 17,3 Md | 2018 | 115 Md |
| 1987 | 11,9 Md | 2003 | 20,3 Md | 2019 | 95,2 Md |
| 1988 | 12,9 Md | 2004 | 27 Md | 2020 | 66,1 Md |
| 1989 | 15 Md | 2005 | 41,4 Md | 2021 | 83 Md |
| 1990 | 16,5 Md | 2006 | 58,7 Md | 2022 | 139 Md |
| 1991 | 16 Md | 2007 | 73 Md | 2023 | 113 Md |
| 1992 | 12,4 Md | 2008 | 98,8 Md | 2024 | 120 Md |
| 1993 | 8,97 Md | 2009 | 81,7 Md | 2025 | 142 Md |
| 1994 | 6,53 Md | 2010 | 95,5 Md | 2026 | 152 Md |
| 1995 | 8,15 Md | 2011 | 126 Md | | |
Tableau de données
| 1991 | 0 M | 2003 | 1,52 Bn | 2015 | 15,81 Bn |
| 1992 | 0 M | 2004 | 2,26 Bn | 2016 | 19,06 Bn |
| 1993 | 0 M | 2005 | 3,61 Bn | 2017 | 23,55 Bn |
| 1994 | 1 M | 2006 | 4,71 Bn | 2018 | 29,19 Bn |
| 1995 | 22 M | 2007 | 5,6 Bn | 2019 | 34,74 Bn |
| 1996 | 1,34 Md | 2008 | 7,41 Bn | 2020 | 38,24 Bn |
| 1997 | 2,82 Md | 2009 | 6,48 Bn | 2021 | 52,42 Bn |
| 1998 | 4,11 Md | 2010 | 8,78 Bn | 2022 | 64,1 Bn |
| 1999 | 27,6 Md | 2011 | 11,79 Bn | 2023 | 77,5 Bn |
| 2000 | 127 Md | 2012 | 13,71 Bn | 2024 | 104,01 Bn |
| 2001 | 273 Md | 2013 | 14,84 Bn | 2025 | 129,26 Bn |
| 2002 | 754 Md | 2014 | 16,17 Bn | 2026 | 143,35 Bn |
Tableau de données
| 1980 | 2,03 Bn | 1996 | 4,59 Bn | 2012 | 14,29 Bn |
| 1981 | 1,94 Bn | 1997 | 4,92 Bn | 2013 | 14,99 Bn |
| 1982 | 1,94 Bn | 1998 | 5,15 Bn | 2014 | 15,69 Bn |
| 1983 | 2,03 Bn | 1999 | 5,26 Bn | 2015 | 15,81 Bn |
| 1984 | 2,15 Bn | 2000 | 5,42 Bn | 2016 | 15,54 Bn |
| 1985 | 2,22 Bn | 2001 | 5,65 Bn | 2017 | 15,52 Bn |
| 1986 | 2,29 Bn | 2002 | 6,42 Bn | 2018 | 15,43 Bn |
| 1987 | 2,38 Bn | 2003 | 6,65 Bn | 2019 | 15,39 Bn |
| 1988 | 2,53 Bn | 2004 | 7,41 Bn | 2020 | 14,77 Bn |
| 1989 | 2,53 Bn | 2005 | 8,46 Bn | 2021 | 15,08 Bn |
| 1990 | 2,44 Bn | 2006 | 9,46 Bn | 2022 | 15,72 Bn |
| 1991 | 2,74 Bn | 2007 | 10,69 Bn | 2023 | 15,93 Bn |
| 1992 | 3,05 Bn | 2008 | 11,84 Bn | 2024 | 16,72 Bn |
| 1993 | 3,38 Bn | 2009 | 12,08 Bn | 2025 | 17,24 Bn |
| 1994 | 3,74 Bn | 2010 | 12,72 Bn | 2026 | 17,63 Bn |
| 1995 | 4,12 Bn | 2011 | 13,17 Bn | | |