Tableau de données
| 1980 | 10,9% | 1996 | 14,9% | 2012 | 15,5% |
| 1981 | 12% | 1997 | 16,2% | 2013 | 15,8% |
| 1982 | 12,8% | 1998 | 17,5% | 2014 | 14,9% |
| 1983 | 13,7% | 1999 | 18,3% | 2015 | 15,4% |
| 1984 | 15,1% | 2000 | 16,7% | 2016 | 15,6% |
| 1985 | 15% | 2001 | 18,7% | 2017 | 14,7% |
| 1986 | 15,9% | 2002 | 19,1% | 2018 | 13,1% |
| 1987 | 14,8% | 2003 | 21,4% | 2019 | 12,8% |
| 1988 | 18,1% | 2004 | 20,5% | 2020 | 11,7% |
| 1989 | 19,7% | 2005 | 18,8% | 2021 | 11% |
| 1990 | 14% | 2006 | 18,3% | 2022 | 8,5% |
| 1991 | 11,3% | 2007 | 17% | 2023 | 8,2% |
| 1992 | 9,3% | 2008 | 15,9% | 2024 | 7,5% |
| 1993 | 9,7% | 2009 | 16,2% | 2025 | 10,9% |
| 1994 | 12,2% | 2010 | 17,2% | 2026 | 11,3% |
| 1995 | 14,6% | 2011 | 16,6% | | |
Tableau de données
| 1980 | 1,62 Md | 1996 | 8,06 Md | 2012 | 116 Md |
| 1981 | 1,83 Md | 1997 | 9,03 Md | 2013 | 137 Md |
| 1982 | 2,05 Md | 1998 | 9,37 Md | 2014 | 158 Md |
| 1983 | 2,43 Md | 1999 | 10,5 Md | 2015 | 200 Md |
| 1984 | 2,55 Md | 2000 | 11,2 Md | 2016 | 245 Md |
| 1985 | 2,96 Md | 2001 | 12,8 Md | 2017 | 270 Md |
| 1986 | 3,25 Md | 2002 | 12,8 Md | 2018 | 288 Md |
| 1987 | 3,25 Md | 2003 | 15,9 Md | 2019 | 345 Md |
| 1988 | 4,1 Md | 2004 | 17,9 Md | 2020 | 395 Md |
| 1989 | 4,7 Md | 2005 | 20,1 Md | 2021 | 479 Md |
| 1990 | 3,54 Md | 2006 | 24,3 Md | 2022 | 526 Md |
| 1991 | 3,17 Md | 2007 | 29,4 Md | 2023 | 717 Md |
| 1992 | 2,75 Md | 2008 | 39,7 Md | 2024 | 887 Md |
| 1993 | 3,66 Md | 2009 | 54,6 Md | 2025 | 1,64 Bn |
| 1994 | 4,93 Md | 2010 | 66,2 Md | 2026 | 2,19 Bn |
| 1995 | 7,05 Md | 2011 | 85,6 Md | | |
Tableau de données
| 1980 | 13,5% | 1996 | 18,8% | 2012 | 16,6% |
| 1981 | 14,2% | 1997 | 17,9% | 2013 | 17,8% |
| 1982 | 16,4% | 1998 | 21,1% | 2014 | 17,5% |
| 1983 | 21,3% | 1999 | 26,8% | 2015 | 17,3% |
| 1984 | 18,8% | 2000 | 25,6% | 2016 | 17,9% |
| 1985 | 19,7% | 2001 | 22,4% | 2017 | 18% |
| 1986 | 19,8% | 2002 | 24,9% | 2018 | 16,1% |
| 1987 | 18,4% | 2003 | 27% | 2019 | 15,4% |
| 1988 | 21,6% | 2004 | 23,1% | 2020 | 14,5% |
| 1989 | 24% | 2005 | 22,9% | 2021 | 13,8% |
| 1990 | 20,9% | 2006 | 22,1% | 2022 | 12,7% |
| 1991 | 17,3% | 2007 | 20,5% | 2023 | 10,8% |
| 1992 | 14,2% | 2008 | 18,8% | 2024 | 9,5% |
| 1993 | 13,8% | 2009 | 17,1% | 2025 | 12% |
| 1994 | 17,6% | 2010 | 18,5% | 2026 | 13,1% |
| 1995 | 17,4% | 2011 | 18,2% | | |
Tableau de données
| 1980 | 2 Md | 1996 | 10,2 Md | 2012 | 124 Md |
| 1981 | 2,16 Md | 1997 | 10 Md | 2013 | 154 Md |
| 1982 | 2,63 Md | 1998 | 11,3 Md | 2014 | 185 Md |
| 1983 | 3,79 Md | 1999 | 15,5 Md | 2015 | 225 Md |
| 1984 | 3,17 Md | 2000 | 17,2 Md | 2016 | 281 Md |
| 1985 | 3,88 Md | 2001 | 15,4 Md | 2017 | 330 Md |
| 1986 | 4,07 Md | 2002 | 16,7 Md | 2018 | 354 Md |
| 1987 | 4,02 Md | 2003 | 20 Md | 2019 | 413 Md |
| 1988 | 4,89 Md | 2004 | 20,2 Md | 2020 | 488 Md |
| 1989 | 5,73 Md | 2005 | 24,6 Md | 2021 | 599 Md |
| 1990 | 5,28 Md | 2006 | 29,3 Md | 2022 | 782 Md |
| 1991 | 4,85 Md | 2007 | 35,6 Md | 2023 | 944 Md |
| 1992 | 4,21 Md | 2008 | 46,9 Md | 2024 | 1,12 Bn |
| 1993 | 5,22 Md | 2009 | 57,8 Md | 2025 | 1,82 Bn |
| 1994 | 7,09 Md | 2010 | 71,3 Md | 2026 | 2,53 Bn |
| 1995 | 8,37 Md | 2011 | 93,9 Md | | |