Tabella dei dati
| 2000 | 50,8% | 2009 | 39,5% | 2018 | 31,1% |
| 2001 | 50,8% | 2010 | 35,4% | 2019 | 34% |
| 2002 | 51,8% | 2011 | 32,4% | 2020 | 43,3% |
| 2003 | 53% | 2012 | 34,5% | 2021 | 43,3% |
| 2004 | 51,3% | 2013 | 31,9% | 2022 | 42,7% |
| 2005 | 45,1% | 2014 | 27,6% | 2023 | 47% |
| 2006 | 42,9% | 2015 | 25,7% | 2024 | 48,3% |
| 2007 | 37,9% | 2016 | 25% | 2025 | 48,1% |
| 2008 | 36,8% | 2017 | 25% | 2026 | 49,6% |
Tabella dei dati
| 2000 | 236 mld | 2009 | 445 mld | 2018 | 1,07 mila mld |
| 2001 | 256 mld | 2010 | 482 mld | 2019 | 1,31 mila mld |
| 2002 | 272 mld | 2011 | 506 mld | 2020 | 1,68 mila mld |
| 2003 | 297 mld | 2012 | 607 mld | 2021 | 1,88 mila mld |
| 2004 | 314 mld | 2013 | 622 mld | 2022 | 2,13 mila mld |
| 2005 | 303 mld | 2014 | 615 mld | 2023 | 2,52 mila mld |
| 2006 | 320 mld | 2015 | 624 mld | 2024 | 2,76 mila mld |
| 2007 | 315 mld | 2016 | 651 mld | 2025 | 2,94 mila mld |
| 2008 | 342 mld | 2017 | 769 mld | 2026 | 3,23 mila mld |