Tabella dei dati
| 1990 | 70,5% | 2003 | 56,9% | 2016 | 60,1% |
| 1991 | 59,1% | 2004 | 54,4% | 2017 | 60,3% |
| 1992 | 67% | 2005 | 54,8% | 2018 | 60,5% |
| 1993 | 74,7% | 2006 | 50,6% | 2019 | 60,3% |
| 1994 | 69,3% | 2007 | 47,1% | 2020 | 72,2% |
| 1995 | 72,2% | 2008 | 42% | 2021 | 69,4% |
| 1996 | 65,3% | 2009 | 42,6% | 2022 | 71,4% |
| 1997 | 68% | 2010 | 45,3% | 2023 | 68,7% |
| 1998 | 64,5% | 2011 | 48,6% | 2024 | 67,7% |
| 1999 | 63,4% | 2012 | 52,3% | 2025 | 67,1% |
| 2000 | 64,9% | 2013 | 57,1% | 2026 | 65,8% |
| 2001 | 60,4% | 2014 | 58,6% | | |
| 2002 | 59,4% | 2015 | 58,4% | | |
Tabella dei dati
| 1990 | 190 mld | 2003 | 307 mld | 2016 | 657 mld |
| 1991 | 180 mld | 2004 | 311 mld | 2017 | 692 mld |
| 1992 | 209 mld | 2005 | 328 mld | 2018 | 723 mld |
| 1993 | 238 mld | 2006 | 331 mld | 2019 | 747 mld |
| 1994 | 246 mld | 2007 | 330 mld | 2020 | 833 mld |
| 1995 | 261 mld | 2008 | 326 mld | 2021 | 885 mld |
| 1996 | 266 mld | 2009 | 345 mld | 2022 | 952 mld |
| 1997 | 274 mld | 2010 | 384 mld | 2023 | 1,02 mila mld |
| 1998 | 280 mld | 2011 | 431 mld | 2024 | 1,08 mila mld |
| 1999 | 280 mld | 2012 | 480 mld | 2025 | 1,14 mila mld |
| 2000 | 290 mld | 2013 | 555 mld | 2026 | 1,2 mila mld |
| 2001 | 292 mld | 2014 | 586 mld | | |
| 2002 | 299 mld | 2015 | 630 mld | | |
Tabella dei dati
| 1996 | 65,1% | 2007 | 45,7% | 2018 | 60,2% |
| 1997 | 67,8% | 2008 | 41,3% | 2019 | 60% |
| 1998 | 64,3% | 2009 | 42% | 2020 | 71,6% |
| 1999 | 63,2% | 2010 | 44,8% | 2021 | 68,8% |
| 2000 | 64,7% | 2011 | 48,2% | 2022 | 71% |
| 2001 | 58,2% | 2012 | 51,8% | 2023 | 67,9% |
| 2002 | 57,1% | 2013 | 56,6% | 2024 | 67,2% |
| 2003 | 54,4% | 2014 | 58,1% | 2025 | 66,5% |
| 2004 | 51,7% | 2015 | 57,8% | 2026 | 65,2% |
| 2005 | 52,4% | 2016 | 59,6% | | |
| 2006 | 48,4% | 2017 | 59,9% | | |
Tabella dei dati
| 1996 | 265 mld | 2007 | 320 mld | 2018 | 720 mld |
| 1997 | 274 mld | 2008 | 321 mld | 2019 | 744 mld |
| 1998 | 280 mld | 2009 | 340 mld | 2020 | 825 mld |
| 1999 | 279 mld | 2010 | 380 mld | 2021 | 879 mld |
| 2000 | 289 mld | 2011 | 428 mld | 2022 | 946 mld |
| 2001 | 281 mld | 2012 | 475 mld | 2023 | 1 mila mld |
| 2002 | 288 mld | 2013 | 550 mld | 2024 | 1,07 mila mld |
| 2003 | 293 mld | 2014 | 582 mld | 2025 | 1,14 mila mld |
| 2004 | 296 mld | 2015 | 624 mld | 2026 | 1,19 mila mld |
| 2005 | 314 mld | 2016 | 653 mld | | |
| 2006 | 316 mld | 2017 | 688 mld | | |