Tabella dei dati
| 1999 | 24,5% | 2009 | 25,8% | 2019 | 27,9% |
| 2000 | 23,8% | 2010 | 27% | 2020 | 28,2% |
| 2001 | 25% | 2011 | 26% | 2021 | 27,6% |
| 2002 | 24,4% | 2012 | 25,5% | 2022 | 27,2% |
| 2003 | 25,5% | 2013 | 27,1% | 2023 | 27% |
| 2004 | 25,7% | 2014 | 26,5% | 2024 | 27,5% |
| 2005 | 26% | 2015 | 26,5% | 2025 | 28,1% |
| 2006 | 26,2% | 2016 | 27% | 2026 | 28,1% |
| 2007 | 26,6% | 2017 | 27,2% | | |
| 2008 | 25% | 2018 | 28,5% | | |
Tabella dei dati
| 1999 | 72,6 mld | 2009 | 201 mld | 2019 | 611 mld |
| 2000 | 71,7 mld | 2010 | 238 mld | 2020 | 633 mld |
| 2001 | 75,8 mld | 2011 | 263 mld | 2021 | 730 mld |
| 2002 | 77 mld | 2012 | 290 mld | 2022 | 799 mld |
| 2003 | 94,7 mld | 2013 | 348 mld | 2023 | 829 mld |
| 2004 | 110 mld | 2014 | 385 mld | 2024 | 909 mld |
| 2005 | 121 mld | 2015 | 421 mld | 2025 | 989 mld |
| 2006 | 135 mld | 2016 | 468 mld | 2026 | 1,06 mila mld |
| 2007 | 159 mld | 2017 | 507 mld | | |
| 2008 | 173 mld | 2018 | 571 mld | | |
Tabella dei dati
| 1999 | 27,2% | 2009 | 27,2% | 2019 | 30,6% |
| 2000 | 26,6% | 2010 | 27,4% | 2020 | 32,8% |
| 2001 | 27,8% | 2011 | 26,3% | 2021 | 30,2% |
| 2002 | 27,6% | 2012 | 27,7% | 2022 | 29,7% |
| 2003 | 27,7% | 2013 | 28,8% | 2023 | 30,1% |
| 2004 | 26,6% | 2014 | 29,1% | 2024 | 30,6% |
| 2005 | 26,3% | 2015 | 28,4% | 2025 | 31,5% |
| 2006 | 26,8% | 2016 | 29,7% | 2026 | 31,8% |
| 2007 | 26,8% | 2017 | 29,7% | | |
| 2008 | 26,3% | 2018 | 30,3% | | |
Tabella dei dati
| 1999 | 80,8 mld | 2009 | 212 mld | 2019 | 671 mld |
| 2000 | 80 mld | 2010 | 242 mld | 2020 | 738 mld |
| 2001 | 84,5 mld | 2011 | 266 mld | 2021 | 799 mld |
| 2002 | 87,1 mld | 2012 | 314 mld | 2022 | 872 mld |
| 2003 | 103 mld | 2013 | 371 mld | 2023 | 924 mld |
| 2004 | 114 mld | 2014 | 422 mld | 2024 | 1,01 mila mld |
| 2005 | 122 mld | 2015 | 450 mld | 2025 | 1,11 mila mld |
| 2006 | 138 mld | 2016 | 514 mld | 2026 | 1,2 mila mld |
| 2007 | 160 mld | 2017 | 554 mld | | |
| 2008 | 182 mld | 2018 | 609 mld | | |