Tabella dei dati
| 1990 | 16,7% | 2003 | 22,4% | 2016 | 28,8% |
| 1991 | 39,9% | 2004 | 24,1% | 2017 | 27,1% |
| 1992 | 32,9% | 2005 | 31,7% | 2018 | 29,5% |
| 1993 | 28,6% | 2006 | 35,8% | 2019 | 29,9% |
| 1994 | 28,3% | 2007 | 34,8% | 2020 | 28% |
| 1995 | 29,7% | 2008 | 39,6% | 2021 | 29,9% |
| 1996 | 28,5% | 2009 | 28,9% | 2022 | 32,5% |
| 1997 | 29,3% | 2010 | 30,9% | 2023 | 28,5% |
| 1998 | 26,8% | 2011 | 34,7% | 2024 | 27,8% |
| 1999 | 25,6% | 2012 | 36,4% | 2025 | 27,7% |
| 2000 | 32,4% | 2013 | 36,9% | 2026 | 27,4% |
| 2001 | 26,4% | 2014 | 33,2% | | |
| 2002 | 20,1% | 2015 | 20,1% | | |
Tabella dei dati
| 1990 | 29,8 mld | 2003 | 102 mld | 2016 | 403 mld |
| 1991 | 72,1 mld | 2004 | 131 mld | 2017 | 401 mld |
| 1992 | 62,7 mld | 2005 | 210 mld | 2018 | 478 mld |
| 1993 | 54,8 mld | 2006 | 292 mld | 2019 | 476 mld |
| 1994 | 59,7 mld | 2007 | 329 mld | 2020 | 368 mld |
| 1995 | 69,2 mld | 2008 | 459 mld | 2021 | 464 mld |
| 1996 | 76,3 mld | 2009 | 269 mld | 2022 | 611 mld |
| 1997 | 82,9 mld | 2010 | 349 mld | 2023 | 547 mld |
| 1998 | 74,2 mld | 2011 | 470 mld | 2024 | 564 mld |
| 1999 | 79,3 mld | 2012 | 525 mld | 2025 | 582 mld |
| 2000 | 123 mld | 2013 | 555 mld | 2026 | 625 mld |
| 2001 | 100 mld | 2014 | 518 mld | | |
| 2002 | 81 mld | 2015 | 281 mld | | |
Tabella dei dati
| 1991 | 36% | 2003 | 20,1% | 2015 | 26,4% |
| 1992 | 29,6% | 2004 | 17,7% | 2016 | 31,7% |
| 1993 | 31,5% | 2005 | 15,7% | 2017 | 27,2% |
| 1994 | 30,1% | 2006 | 15,6% | 2018 | 25,9% |
| 1995 | 26,1% | 2007 | 17,7% | 2019 | 27,4% |
| 1996 | 27,6% | 2008 | 22% | 2020 | 30,5% |
| 1997 | 22,6% | 2009 | 35% | 2021 | 25,9% |
| 1998 | 25,8% | 2010 | 30,4% | 2022 | 22,7% |
| 1999 | 24,3% | 2011 | 29,6% | 2023 | 22,7% |
| 2000 | 21,8% | 2012 | 27,8% | 2024 | 21,4% |
| 2001 | 25,2% | 2013 | 28,9% | 2025 | 22,6% |
| 2002 | 21,3% | 2014 | 31,4% | 2026 | 22,5% |
Tabella dei dati
| 1991 | 65,1 mld | 2003 | 91,6 mld | 2015 | 370 mld |
| 1992 | 56,4 mld | 2004 | 96,1 mld | 2016 | 444 mld |
| 1993 | 60,3 mld | 2005 | 104 mld | 2017 | 404 mld |
| 1994 | 63,5 mld | 2006 | 127 mld | 2018 | 419 mld |
| 1995 | 60,9 mld | 2007 | 167 mld | 2019 | 437 mld |
| 1996 | 73,8 mld | 2008 | 254 mld | 2020 | 400 mld |
| 1997 | 63,9 mld | 2009 | 326 mld | 2021 | 402 mld |
| 1998 | 71,5 mld | 2010 | 343 mld | 2022 | 427 mld |
| 1999 | 75,3 mld | 2011 | 401 mld | 2023 | 435 mld |
| 2000 | 82,4 mld | 2012 | 401 mld | 2024 | 434 mld |
| 2001 | 95,7 mld | 2013 | 434 mld | 2025 | 474 mld |
| 2002 | 86 mld | 2014 | 490 mld | 2026 | 513 mld |