Tabella dei dati
| 1995 | 2,47 mld | 2006 | 2,85 mld | 2017 | 4,23 mld |
| 1996 | 2,37 mld | 2007 | 3,38 mld | 2018 | 5,91 mld |
| 1997 | 1,84 mld | 2008 | 3,61 mld | 2019 | 5,96 mld |
| 1998 | 1,65 mld | 2009 | 3,15 mld | 2020 | 3,45 mld |
| 1999 | 2,27 mld | 2010 | 3,25 mld | 2021 | 4,3 mld |
| 2000 | 2,69 mld | 2011 | 3,48 mld | 2022 | 4,38 mld |
| 2001 | 1,77 mld | 2012 | 2,99 mld | 2023 | 6,06 mld |
| 2002 | 1,8 mld | 2013 | 2,57 mld | 2024 | 3,98 mld |
| 2003 | 2,12 mld | 2014 | 2,82 mld | 2025 | 4,76 mld |
| 2004 | 2,48 mld | 2015 | 3,37 mld | 2026 | 4,97 mld |
| 2005 | 2,62 mld | 2016 | 4,6 mld | | |
Tabella dei dati
| 1995 | 12% | 2006 | 6,6% | 2017 | 6,4% |
| 1996 | 11,6% | 2007 | 6,5% | 2018 | 8,3% |
| 1997 | 10% | 2008 | 6,1% | 2019 | 8,5% |
| 1998 | 8,6% | 2009 | 5,8% | 2020 | 4,7% |
| 1999 | 10,8% | 2010 | 5,8% | 2021 | 5% |
| 2000 | 12,7% | 2011 | 5,6% | 2022 | 5,4% |
| 2001 | 8,3% | 2012 | 5% | 2023 | 6,8% |
| 2002 | 7,6% | 2013 | 3,9% | 2024 | 4,3% |
| 2003 | 7,1% | 2014 | 4,1% | 2025 | 4,7% |
| 2004 | 7,1% | 2015 | 5,6% | 2026 | 4,5% |
| 2005 | 6,9% | 2016 | 7,4% | | |