Tabella dei dati
| 1997 | 72,2% | 2007 | 53,6% | 2017 | 71,9% |
| 1998 | 71,2% | 2008 | 55,1% | 2018 | 68,5% |
| 1999 | 68,2% | 2009 | 59,7% | 2019 | 66,6% |
| 2000 | 63,8% | 2010 | 57,7% | 2020 | 75,4% |
| 2001 | 60,6% | 2011 | 59,4% | 2021 | 74,8% |
| 2002 | 64,1% | 2012 | 62,1% | 2022 | 64,7% |
| 2003 | 60,2% | 2013 | 70,4% | 2023 | 58% |
| 2004 | 57,5% | 2014 | 72% | 2024 | 54,5% |
| 2005 | 58,2% | 2015 | 73,7% | 2025 | 52,6% |
| 2006 | 56,7% | 2016 | 73,3% | 2026 | 51,5% |
Tabella dei dati
| 1997 | 239 mld | 2007 | 517 mld | 2017 | 1,11 mila mld |
| 1998 | 274 mld | 2008 | 596 mld | 2018 | 1,14 mila mld |
| 1999 | 302 mld | 2009 | 683 mld | 2019 | 1,14 mila mld |
| 2000 | 320 mld | 2010 | 716 mld | 2020 | 1,25 mila mld |
| 2001 | 342 mld | 2011 | 773 mld | 2021 | 1,4 mila mld |
| 2002 | 391 mld | 2012 | 828 mld | 2022 | 1,39 mila mld |
| 2003 | 408 mld | 2013 | 950 mld | 2023 | 1,37 mila mld |
| 2004 | 424 mld | 2014 | 1 mila mld | 2024 | 1,37 mila mld |
| 2005 | 468 mld | 2015 | 1,06 mila mld | 2025 | 1,4 mila mld |
| 2006 | 495 mld | 2016 | 1,08 mila mld | 2026 | 1,46 mila mld |
Tabella dei dati
| 2011 | 58,2% | 2017 | 65,5% | 2023 | 50,5% |
| 2012 | 60,6% | 2018 | 60,5% | 2024 | 47% |
| 2013 | 68,2% | 2019 | 59,8% | 2025 | 45,5% |
| 2014 | 65,5% | 2020 | 66,3% | 2026 | 44,8% |
| 2015 | 68,8% | 2021 | 65,9% | | |
| 2016 | 69,8% | 2022 | 58,3% | | |
Tabella dei dati
| 2011 | 756 mld | 2017 | 1,02 mila mld | 2023 | 1,19 mila mld |
| 2012 | 807 mld | 2018 | 1,01 mila mld | 2024 | 1,18 mila mld |
| 2013 | 921 mld | 2019 | 1,02 mila mld | 2025 | 1,21 mila mld |
| 2014 | 914 mld | 2020 | 1,1 mila mld | 2026 | 1,27 mila mld |
| 2015 | 987 mld | 2021 | 1,23 mila mld | | |
| 2016 | 1,03 mila mld | 2022 | 1,25 mila mld | | |