Tabella dei dati
| 1997 | 38,1% | 2007 | 35,8% | 2017 | 63,8% |
| 1998 | 39,3% | 2008 | 39% | 2018 | 70,7% |
| 1999 | 38,9% | 2009 | 48,4% | 2019 | 77,2% |
| 2000 | 39% | 2010 | 52,7% | 2020 | 155,7% |
| 2001 | 41,8% | 2011 | 51,9% | 2021 | 123,4% |
| 2002 | 44,3% | 2012 | 57,1% | 2022 | 111,6% |
| 2003 | 37,6% | 2013 | 55,9% | 2023 | 122,4% |
| 2004 | 34,7% | 2014 | 55,1% | 2024 | 133,3% |
| 2005 | 43,2% | 2015 | 54,8% | 2025 | 125,4% |
| 2006 | 36,8% | 2016 | 61,9% | 2026 | 129,4% |
Tabella dei dati
| 1997 | 2,93 mld | 2007 | 8,57 mld | 2017 | 47,2 mld |
| 1998 | 3,2 mld | 2008 | 11,3 mld | 2018 | 58,8 mld |
| 1999 | 3,47 mld | 2009 | 14,5 mld | 2019 | 68 mld |
| 2000 | 3,68 mld | 2010 | 17,5 mld | 2020 | 88,9 mld |
| 2001 | 4,11 mld | 2011 | 21 mld | 2021 | 99,7 mld |
| 2002 | 4,69 mld | 2012 | 25,3 mld | 2022 | 106 mld |
| 2003 | 5,06 mld | 2013 | 28,3 mld | 2023 | 125 mld |
| 2004 | 5,45 mld | 2014 | 31,3 mld | 2024 | 145 mld |
| 2005 | 6,43 mld | 2015 | 34,8 mld | 2025 | 148 mld |
| 2006 | 7,42 mld | 2016 | 41,9 mld | 2026 | 162 mld |