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| 1990 | 67% | 2003 | 37,5% | 2016 | 19,4% |
| 1991 | 49,4% | 2004 | 36% | 2017 | 19,8% |
| 1992 | 34,4% | 2005 | 28,3% | 2018 | 22,3% |
| 1993 | 26,6% | 2006 | 21% | 2019 | 25,8% |
| 1994 | 18,7% | 2007 | 16,8% | 2020 | 36,9% |
| 1995 | 17,6% | 2008 | 16% | 2021 | 37,5% |
| 1996 | 16,8% | 2009 | 14,9% | 2022 | 40,6% |
| 1997 | 18% | 2010 | 13% | 2023 | 41% |
| 1998 | 22,1% | 2011 | 11,1% | 2024 | 44,6% |
| 1999 | 32% | 2012 | 12,3% | 2025 | 38,1% |
| 2000 | 33,6% | 2013 | 13,5% | 2026 | 37,8% |
| 2001 | 37,1% | 2014 | 15,6% | | |
| 2002 | 50,5% | 2015 | 18,6% | | |
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| 1990 | 4,04 bill. | 2003 | 18,53 bill. | 2016 | 39,68 bill. |
| 1991 | 4,57 bill. | 2004 | 20,73 bill. | 2017 | 43,49 bill. |
| 1992 | 3,69 bill. | 2005 | 18,76 bill. | 2018 | 51,49 bill. |
| 1993 | 3,36 bill. | 2006 | 15,87 bill. | 2019 | 60,99 bill. |
| 1994 | 2,8 bill. | 2007 | 15,11 bill. | 2020 | 88,53 bill. |
| 1995 | 3,12 bill. | 2008 | 17,23 bill. | 2021 | 101,49 bill. |
| 1996 | 3,38 bill. | 2009 | 16,59 bill. | 2022 | 118,73 bill. |
| 1997 | 3,9 bill. | 2010 | 16,75 bill. | 2023 | 129,05 bill. |
| 1998 | 5,59 bill. | 2011 | 15,64 bill. | 2024 | 150,96 bill. |
| 1999 | 8,82 bill. | 2012 | 18,13 bill. | 2025 | 142,02 bill. |
| 2000 | 10,37 bill. | 2013 | 22,45 bill. | 2026 | 151,18 bill. |
| 2001 | 12,94 bill. | 2014 | 28,09 bill. | | |
| 2002 | 20,79 bill. | 2015 | 35,08 bill. | | |
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| 2000 | 30,1% | 2009 | 11,1% | 2018 | 18,4% |
| 2001 | 35% | 2010 | 8,4% | 2019 | 22,7% |
| 2002 | 48,8% | 2011 | 6,7% | 2020 | 32,2% |
| 2003 | 35,2% | 2012 | 8,8% | 2021 | 33,3% |
| 2004 | 34% | 2013 | 9,9% | 2022 | 36,9% |
| 2005 | 26,6% | 2014 | 10,9% | 2023 | 38,2% |
| 2006 | 19% | 2015 | 14,8% | 2024 | 42% |
| 2007 | 14,3% | 2016 | 15,6% | 2025 | 35,7% |
| 2008 | 12,7% | 2017 | 16% | 2026 | 35,5% |
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| 2000 | 9,3 bill. | 2009 | 12,32 bill. | 2018 | 42,51 bill. |
| 2001 | 12,22 bill. | 2010 | 10,88 bill. | 2019 | 53,65 bill. |
| 2002 | 20,06 bill. | 2011 | 9,48 bill. | 2020 | 77,36 bill. |
| 2003 | 17,41 bill. | 2012 | 12,96 bill. | 2021 | 90 bill. |
| 2004 | 19,54 bill. | 2013 | 16,49 bill. | 2022 | 107,88 bill. |
| 2005 | 17,66 bill. | 2014 | 19,7 bill. | 2023 | 120,02 bill. |
| 2006 | 14,4 bill. | 2015 | 27,81 bill. | 2024 | 141,94 bill. |
| 2007 | 12,86 bill. | 2016 | 31,9 bill. | 2025 | 132,99 bill. |
| 2008 | 13,64 bill. | 2017 | 34,95 bill. | 2026 | 142,16 bill. |