Tabella dei dati
| 1990 | 90% | 2003 | 70,2% | 2016 | 64,5% |
| 1991 | 89,3% | 2004 | 60,3% | 2017 | 62,9% |
| 1992 | 87,9% | 2005 | 41,7% | 2018 | 62,3% |
| 1993 | 90,1% | 2006 | 34,9% | 2019 | 59,8% |
| 1994 | 71,3% | 2007 | 39,2% | 2020 | 83% |
| 1995 | 73,4% | 2008 | 20,1% | 2021 | 72,9% |
| 1996 | 64,5% | 2009 | 26% | 2022 | 65,6% |
| 1997 | 57% | 2010 | 21,3% | 2023 | 70,6% |
| 1998 | 87,6% | 2011 | 21,4% | 2024 | 70,9% |
| 1999 | 73,1% | 2012 | 21,4% | 2025 | 78,9% |
| 2000 | 72,5% | 2013 | 31,1% | 2026 | 86,1% |
| 2001 | 81% | 2014 | 34,1% | | |
| 2002 | 81,1% | 2015 | 44,7% | | |
Tabella dei dati
| 1990 | 1,55 mila mld | 2003 | 2,65 mila mld | 2016 | 5,36 mila mld |
| 1991 | 1,45 mila mld | 2004 | 2,47 mila mld | 2017 | 5,46 mila mld |
| 1992 | 1,39 mila mld | 2005 | 2,08 mila mld | 2018 | 5,83 mila mld |
| 1993 | 1,47 mila mld | 2006 | 1,85 mila mld | 2019 | 5,91 mila mld |
| 1994 | 1,77 mila mld | 2007 | 2,34 mila mld | 2020 | 7,33 mila mld |
| 1995 | 1,93 mila mld | 2008 | 1,39 mila mld | 2021 | 7,87 mila mld |
| 1996 | 2 mila mld | 2009 | 1,49 mila mld | 2022 | 8,36 mila mld |
| 1997 | 1,89 mila mld | 2010 | 1,51 mila mld | 2023 | 8,59 mila mld |
| 1998 | 2,47 mila mld | 2011 | 1,84 mila mld | 2024 | 8,98 mila mld |
| 1999 | 2,23 mila mld | 2012 | 1,88 mila mld | 2025 | 9,91 mila mld |
| 2000 | 2,79 mila mld | 2013 | 2,7 mila mld | 2026 | 11,19 mila mld |
| 2001 | 2,98 mila mld | 2014 | 3,06 mila mld | | |
| 2002 | 3 mila mld | 2015 | 3,8 mila mld | | |