Tableau de données
| 1980 | 36,9% | 1996 | 42,8% | 2012 | 38,4% |
| 1981 | 38,9% | 1997 | 43,5% | 2013 | 38,5% |
| 1982 | 39,5% | 1998 | 43,5% | 2014 | 38,5% |
| 1983 | 39% | 1999 | 43,4% | 2015 | 40% |
| 1984 | 38,8% | 2000 | 43,2% | 2016 | 40,3% |
| 1985 | 38,7% | 2001 | 41,6% | 2017 | 40,3% |
| 1986 | 39,5% | 2002 | 40,2% | 2018 | 41% |
| 1987 | 39,7% | 2003 | 40,1% | 2019 | 40,6% |
| 1988 | 40,3% | 2004 | 39,9% | 2020 | 41,4% |
| 1989 | 40,5% | 2005 | 40,1% | 2021 | 42,4% |
| 1990 | 42,2% | 2006 | 40,5% | 2022 | 41% |
| 1991 | 43,1% | 2007 | 40,3% | 2023 | 41,6% |
| 1992 | 43,3% | 2008 | 39% | 2024 | 42,2% |
| 1993 | 42,5% | 2009 | 39,5% | 2025 | 42,2% |
| 1994 | 42,1% | 2010 | 38,3% | 2026 | 41,9% |
| 1995 | 42,2% | 2011 | 38,3% | | |
Tableau de données
| 1980 | 119 Md | 1996 | 368 Md | 2012 | 702 Md |
| 1981 | 143 Md | 1997 | 395 Md | 2013 | 732 Md |
| 1982 | 153 Md | 1998 | 410 Md | 2014 | 769 Md |
| 1983 | 164 Md | 1999 | 438 Md | 2015 | 795 Md |
| 1984 | 179 Md | 2000 | 478 Md | 2016 | 816 Md |
| 1985 | 194 Md | 2001 | 476 Md | 2017 | 864 Md |
| 1986 | 208 Md | 2002 | 479 Md | 2018 | 917 Md |
| 1987 | 228 Md | 2003 | 504 Md | 2019 | 939 Md |
| 1988 | 252 Md | 2004 | 533 Md | 2020 | 920 Md |
| 1989 | 272 Md | 2005 | 570 Md | 2021 | 1,08 Bn |
| 1990 | 293 Md | 2006 | 606 Md | 2022 | 1,18 Bn |
| 1991 | 302 Md | 2007 | 636 Md | 2023 | 1,23 Bn |
| 1992 | 311 Md | 2008 | 646 Md | 2024 | 1,31 Bn |
| 1993 | 318 Md | 2009 | 621 Md | 2025 | 1,37 Bn |
| 1994 | 333 Md | 2010 | 639 Md | 2026 | 1,43 Bn |
| 1995 | 351 Md | 2011 | 679 Md | | |
Tableau de données
| 1980 | 40,9% | 1996 | 45,9% | 2012 | 40,9% |
| 1981 | 41,8% | 1997 | 43,5% | 2013 | 40% |
| 1982 | 46,4% | 1998 | 43,4% | 2014 | 38,4% |
| 1983 | 47% | 1999 | 41,8% | 2015 | 40% |
| 1984 | 46,8% | 2000 | 40,6% | 2016 | 40,8% |
| 1985 | 47,5% | 2001 | 41,1% | 2017 | 40,5% |
| 1986 | 46,8% | 2002 | 40,4% | 2018 | 40,7% |
| 1987 | 45,4% | 2003 | 40,3% | 2019 | 40,6% |
| 1988 | 44,8% | 2004 | 39,1% | 2020 | 52,4% |
| 1989 | 45,3% | 2005 | 38,5% | 2021 | 45,5% |
| 1990 | 48,1% | 2006 | 38,7% | 2022 | 40,4% |
| 1991 | 51,4% | 2007 | 38,5% | 2023 | 41,8% |
| 1992 | 52,5% | 2008 | 38,8% | 2024 | 44,3% |
| 1993 | 51,5% | 2009 | 43,4% | 2025 | 44% |
| 1994 | 49% | 2010 | 43,1% | 2026 | 44,6% |
| 1995 | 47,7% | 2011 | 41,6% | | |
Tableau de données
| 1980 | 132 Md | 1996 | 394 Md | 2012 | 748 Md |
| 1981 | 154 Md | 1997 | 394 Md | 2013 | 760 Md |
| 1982 | 180 Md | 1998 | 408 Md | 2014 | 765 Md |
| 1983 | 198 Md | 1999 | 421 Md | 2015 | 797 Md |
| 1984 | 216 Md | 2000 | 449 Md | 2016 | 825 Md |
| 1985 | 237 Md | 2001 | 470 Md | 2017 | 866 Md |
| 1986 | 247 Md | 2002 | 482 Md | 2018 | 909 Md |
| 1987 | 261 Md | 2003 | 505 Md | 2019 | 939 Md |
| 1988 | 281 Md | 2004 | 523 Md | 2020 | 1,16 Bn |
| 1989 | 304 Md | 2005 | 548 Md | 2021 | 1,15 Bn |
| 1990 | 334 Md | 2006 | 579 Md | 2022 | 1,16 Bn |
| 1991 | 361 Md | 2007 | 608 Md | 2023 | 1,24 Bn |
| 1992 | 377 Md | 2008 | 643 Md | 2024 | 1,38 Bn |
| 1993 | 385 Md | 2009 | 682 Md | 2025 | 1,43 Bn |
| 1994 | 388 Md | 2010 | 717 Md | 2026 | 1,52 Bn |
| 1995 | 397 Md | 2011 | 738 Md | | |