Tabella dei dati
| 1995 | 78,5% | 2006 | 23,7% | 2017 | 65,2% |
| 1996 | 69,8% | 2007 | 23,9% | 2018 | 61,3% |
| 1997 | 61,6% | 2008 | 42,5% | 2019 | 55,8% |
| 1998 | 51,4% | 2009 | 61,8% | 2020 | 56,9% |
| 1999 | 46,6% | 2010 | 86,2% | 2021 | 52,4% |
| 2000 | 36,4% | 2011 | 109,6% | 2022 | 42,9% |
| 2001 | 33,6% | 2012 | 118,9% | 2023 | 41,8% |
| 2002 | 30,9% | 2013 | 117,7% | 2024 | 38,3% |
| 2003 | 29,8% | 2014 | 101,4% | 2025 | 32,9% |
| 2004 | 28,1% | 2015 | 74% | 2026 | 31,6% |
| 2005 | 26,1% | 2016 | 72,7% | | |
Tabella dei dati
| 1990 | 34,2 mld | 2003 | 43,4 mld | 2016 | 201 mld |
| 1991 | 36 mld | 2004 | 43,9 mld | 2017 | 201 mld |
| 1992 | 37 mld | 2005 | 44,4 mld | 2018 | 206 mld |
| 1993 | 41,1 mld | 2006 | 43,7 mld | 2019 | 203 mld |
| 1994 | 41,7 mld | 2007 | 47,2 mld | 2020 | 217 mld |
| 1995 | 43,1 mld | 2008 | 79,6 mld | 2021 | 235 mld |
| 1996 | 42,1 mld | 2009 | 105 mld | 2022 | 224 mld |
| 1997 | 42,7 mld | 2010 | 144 mld | 2023 | 219 mld |
| 1998 | 41,4 mld | 2011 | 190 mld | 2024 | 215 mld |
| 1999 | 43,2 mld | 2012 | 210 mld | 2025 | 209 mld |
| 2000 | 39,5 mld | 2013 | 215 mld | 2026 | 209 mld |
| 2001 | 41 mld | 2014 | 203 mld | | |
| 2002 | 42 mld | 2015 | 202 mld | | |
Tabella dei dati
| 1998 | 44,1% | 2008 | 22,8% | 2018 | 52,5% |
| 1999 | 34,2% | 2009 | 37% | 2019 | 47,7% |
| 2000 | 24,6% | 2010 | 66,7% | 2020 | 48,4% |
| 2001 | 20,9% | 2011 | 78,6% | 2021 | 41,1% |
| 2002 | 22,7% | 2012 | 86,7% | 2022 | 37,1% |
| 2003 | 22,1% | 2013 | 88,9% | 2023 | 36,8% |
| 2004 | 19,8% | 2014 | 84% | 2024 | 31,3% |
| 2005 | 17,6% | 2015 | 63,7% | 2025 | 26,3% |
| 2006 | 14,5% | 2016 | 64,1% | 2026 | 22,5% |
| 2007 | 14,4% | 2017 | 56,7% | | |
Tabella dei dati
| 1998 | 35,4 mld | 2008 | 42,6 mld | 2018 | 176 mld |
| 1999 | 31,7 mld | 2009 | 62,7 mld | 2019 | 174 mld |
| 2000 | 26,6 mld | 2010 | 111 mld | 2020 | 185 mld |
| 2001 | 25,5 mld | 2011 | 136 mld | 2021 | 184 mld |
| 2002 | 30,8 mld | 2012 | 153 mld | 2022 | 193 mld |
| 2003 | 32,1 mld | 2013 | 163 mld | 2023 | 193 mld |
| 2004 | 31 mld | 2014 | 169 mld | 2024 | 176 mld |
| 2005 | 30 mld | 2015 | 174 mld | 2025 | 167 mld |
| 2006 | 26,8 mld | 2016 | 177 mld | 2026 | 148 mld |
| 2007 | 28,3 mld | 2017 | 175 mld | | |