Tabella dei dati
| 1990 | 17,2% | 2003 | 21,3% | 2016 | 27% |
| 1991 | 18,6% | 2004 | 23,1% | 2017 | 26,5% |
| 1992 | 20,2% | 2005 | 23,6% | 2018 | 26,4% |
| 1993 | 19,3% | 2006 | 23% | 2019 | 26% |
| 1994 | 18,1% | 2007 | 24,2% | 2020 | 23,8% |
| 1995 | 17% | 2008 | 26,1% | 2021 | 25,6% |
| 1996 | 18,8% | 2009 | 23,5% | 2022 | 25,6% |
| 1997 | 19,5% | 2010 | 23,1% | 2023 | 25,3% |
| 1998 | 22,3% | 2011 | 23% | 2024 | 24,5% |
| 1999 | 24,7% | 2012 | 22,9% | 2025 | 24,2% |
| 2000 | 23,6% | 2013 | 22,5% | 2026 | 24% |
| 2001 | 21,9% | 2014 | 23,6% | | |
| 2002 | 21,8% | 2015 | 25,2% | | |
Tabella dei dati
| 1990 | 2,95 mld | 2003 | 30,5 mld | 2016 | 134 mld |
| 1991 | 4,15 mld | 2004 | 37,3 mld | 2017 | 144 mld |
| 1992 | 5,18 mld | 2005 | 43,3 mld | 2018 | 152 mld |
| 1993 | 5,99 mld | 2006 | 47,5 mld | 2019 | 159 mld |
| 1994 | 7,13 mld | 2007 | 56,5 mld | 2020 | 137 mld |
| 1995 | 8,7 mld | 2008 | 68,6 mld | 2021 | 173 mld |
| 1996 | 11,6 mld | 2009 | 64,7 mld | 2022 | 197 mld |
| 1997 | 14,7 mld | 2010 | 69,1 mld | 2023 | 213 mld |
| 1998 | 19,2 mld | 2011 | 77 mld | 2024 | 226 mld |
| 1999 | 22,7 mld | 2012 | 82,7 mld | 2025 | 249 mld |
| 2000 | 25,2 mld | 2013 | 84,7 mld | 2026 | 267 mld |
| 2001 | 26 mld | 2014 | 97,8 mld | | |
| 2002 | 28,2 mld | 2015 | 116 mld | | |
Tabella dei dati
| 1990 | 19,4% | 2003 | 26,4% | 2016 | 27,4% |
| 1991 | 20,8% | 2004 | 25,5% | 2017 | 26,9% |
| 1992 | 21,6% | 2005 | 23,6% | 2018 | 26,2% |
| 1993 | 24,5% | 2006 | 24,4% | 2019 | 25,9% |
| 1994 | 19% | 2007 | 24,4% | 2020 | 28,4% |
| 1995 | 17,2% | 2008 | 26,4% | 2021 | 28,8% |
| 1996 | 18,7% | 2009 | 28,4% | 2022 | 24% |
| 1997 | 19,4% | 2010 | 26,5% | 2023 | 27,2% |
| 1998 | 19,4% | 2011 | 25,9% | 2024 | 25,7% |
| 1999 | 23,3% | 2012 | 26,4% | 2025 | 24,9% |
| 2000 | 22,1% | 2013 | 28% | 2026 | 25,5% |
| 2001 | 25,1% | 2014 | 26,4% | | |
| 2002 | 26,8% | 2015 | 26% | | |
Tabella dei dati
| 1990 | 3,32 mld | 2003 | 37,8 mld | 2016 | 136 mld |
| 1991 | 4,63 mld | 2004 | 41,3 mld | 2017 | 146 mld |
| 1992 | 5,56 mld | 2005 | 43,4 mld | 2018 | 150 mld |
| 1993 | 7,61 mld | 2006 | 50,3 mld | 2019 | 158 mld |
| 1994 | 7,51 mld | 2007 | 57,1 mld | 2020 | 163 mld |
| 1995 | 8,83 mld | 2008 | 69,3 mld | 2021 | 195 mld |
| 1996 | 11,5 mld | 2009 | 78,1 mld | 2022 | 185 mld |
| 1997 | 14,6 mld | 2010 | 79,2 mld | 2023 | 230 mld |
| 1998 | 16,7 mld | 2011 | 86,8 mld | 2024 | 236 mld |
| 1999 | 21,5 mld | 2012 | 95,2 mld | 2025 | 257 mld |
| 2000 | 23,6 mld | 2013 | 105 mld | 2026 | 283 mld |
| 2001 | 29,7 mld | 2014 | 109 mld | | |
| 2002 | 34,6 mld | 2015 | 120 mld | | |