Tabella dei dati
| 1992 | 66,7% | 2004 | 46,2% | 2016 | 41,7% |
| 1993 | 78,7% | 2005 | 39,4% | 2017 | 40,2% |
| 1994 | 75,3% | 2006 | 33,2% | 2018 | 38,5% |
| 1995 | 71,5% | 2007 | 29,5% | 2019 | 38,3% |
| 1996 | 68,3% | 2008 | 35,5% | 2020 | 45,2% |
| 1997 | 64,4% | 2009 | 43% | 2021 | 39,6% |
| 1998 | 60,3% | 2010 | 46,1% | 2022 | 33,3% |
| 1999 | 56,8% | 2011 | 50% | 2023 | 33% |
| 2000 | 53,6% | 2012 | 48,7% | 2024 | 30,5% |
| 2001 | 50,1% | 2013 | 47,8% | 2025 | 27,5% |
| 2002 | 50,3% | 2014 | 48,7% | 2026 | 27,4% |
| 2003 | 48,2% | 2015 | 44,6% | | |
Tabella dei dati
| 1992 | 616 mld | 2004 | 698 mld | 2016 | 876 mld |
| 1993 | 730 mld | 2005 | 626 mld | 2017 | 879 mld |
| 1994 | 747 mld | 2006 | 559 mld | 2018 | 865 mld |
| 1995 | 740 mld | 2007 | 514 mld | 2019 | 883 mld |
| 1996 | 743 mld | 2008 | 643 mld | 2020 | 1,05 mila mld |
| 1997 | 737 mld | 2009 | 745 mld | 2021 | 1,01 mila mld |
| 1998 | 715 mld | 2010 | 836 mld | 2022 | 943 mld |
| 1999 | 705 mld | 2011 | 924 mld | 2023 | 919 mld |
| 2000 | 710 mld | 2012 | 922 mld | 2024 | 894 mld |
| 2001 | 687 mld | 2013 | 925 mld | 2025 | 842 mld |
| 2002 | 710 mld | 2014 | 965 mld | 2026 | 872 mld |
| 2003 | 693 mld | 2015 | 904 mld | | |
Tabella dei dati
| 1995 | 50,2% | 2006 | 16,5% | 2017 | 15,7% |
| 1996 | 50% | 2007 | 11,6% | 2018 | 13,3% |
| 1997 | 48,3% | 2008 | 8,4% | 2019 | 12,3% |
| 1998 | 45,4% | 2009 | 12,2% | 2020 | 14,2% |
| 1999 | 42% | 2010 | 16,1% | 2021 | 8,9% |
| 2000 | 39,7% | 2011 | 16,5% | 2022 | 4,6% |
| 2001 | 35,7% | 2012 | 19,8% | 2023 | 1,3% |
| 2002 | 36,5% | 2013 | 19,2% | 2024 | -3,3% |
| 2003 | 35,6% | 2014 | 19,3% | 2025 | -6% |
| 2004 | 32,3% | 2015 | 19,1% | 2026 | -5,9% |
| 2005 | 25,9% | 2016 | 18,8% | | |
Tabella dei dati
| 1995 | 520 mld | 2006 | 278 mld | 2017 | 344 mld |
| 1996 | 543 mld | 2007 | 203 mld | 2018 | 298 mld |
| 1997 | 552 mld | 2008 | 152 mld | 2019 | 282 mld |
| 1998 | 538 mld | 2009 | 212 mld | 2020 | 331 mld |
| 1999 | 521 mld | 2010 | 293 mld | 2021 | 227 mld |
| 2000 | 527 mld | 2011 | 306 mld | 2022 | 131 mld |
| 2001 | 489 mld | 2012 | 375 mld | 2023 | 35,3 mld |
| 2002 | 515 mld | 2013 | 371 mld | 2024 | -95,2 mld |
| 2003 | 512 mld | 2014 | 383 mld | 2025 | -182 mld |
| 2004 | 487 mld | 2015 | 388 mld | 2026 | -188 mld |
| 2005 | 412 mld | 2016 | 394 mld | | |