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| 1991 | 39% | 2003 | 63,3% | 2015 | 71,2% |
| 1992 | 41,4% | 2004 | 65% | 2016 | 68,3% |
| 1993 | 45,1% | 2005 | 67,1% | 2017 | 64% |
| 1994 | 47,5% | 2006 | 66,4% | 2018 | 60,8% |
| 1995 | 54,9% | 2007 | 63,7% | 2019 | 58,7% |
| 1996 | 57,7% | 2008 | 65,2% | 2020 | 68% |
| 1997 | 58,8% | 2009 | 72,4% | 2021 | 67,9% |
| 1998 | 59,4% | 2010 | 81% | 2022 | 64,4% |
| 1999 | 60,3% | 2011 | 78,5% | 2023 | 62,3% |
| 2000 | 59,2% | 2012 | 79,8% | 2024 | 62,2% |
| 2001 | 58,1% | 2013 | 77,5% | 2025 | 62,9% |
| 2002 | 59,8% | 2014 | 74,5% | 2026 | 64,6% |
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| 1991 | 621 mil M | 2003 | 1,42 bill. | 2015 | 2,2 bill. |
| 1992 | 708 mil M | 2004 | 1,49 bill. | 2016 | 2,18 bill. |
| 1993 | 792 mil M | 2005 | 1,56 bill. | 2017 | 2,13 bill. |
| 1994 | 872 mil M | 2006 | 1,61 bill. | 2018 | 2,09 bill. |
| 1995 | 1,04 bill. | 2007 | 1,62 bill. | 2019 | 2,08 bill. |
| 1996 | 1,11 bill. | 2008 | 1,69 bill. | 2020 | 2,35 bill. |
| 1997 | 1,16 bill. | 2009 | 1,8 bill. | 2021 | 2,5 bill. |
| 1998 | 1,2 bill. | 2010 | 2,12 bill. | 2022 | 2,57 bill. |
| 1999 | 1,25 bill. | 2011 | 2,16 bill. | 2023 | 2,63 bill. |
| 2000 | 1,26 bill. | 2012 | 2,23 bill. | 2024 | 2,69 bill. |
| 2001 | 1,27 bill. | 2013 | 2,22 bill. | 2025 | 2,81 bill. |
| 2002 | 1,33 bill. | 2014 | 2,22 bill. | 2026 | 2,99 bill. |
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| 1995 | 41,4% | 2006 | 56% | 2017 | 44,7% |
| 1996 | 44,3% | 2007 | 53,1% | 2018 | 42,1% |
| 1997 | 45,5% | 2008 | 52,8% | 2019 | 39,8% |
| 1998 | 46,9% | 2009 | 59,5% | 2020 | 45,3% |
| 1999 | 48,2% | 2010 | 61,3% | 2021 | 46,2% |
| 2000 | 45% | 2011 | 59,5% | 2022 | 45,8% |
| 2001 | 46,2% | 2012 | 58,8% | 2023 | 45,7% |
| 2002 | 48,7% | 2013 | 57,9% | 2024 | 46% |
| 2003 | 52,4% | 2014 | 54,5% | 2025 | 47,2% |
| 2004 | 54,8% | 2015 | 51,7% | 2026 | 49,4% |
| 2005 | 57,2% | 2016 | 48,9% | | |
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| 1995 | 787 mil M | 2006 | 1,36 bill. | 2017 | 1,49 bill. |
| 1996 | 854 mil M | 2007 | 1,35 bill. | 2018 | 1,45 bill. |
| 1997 | 896 mil M | 2008 | 1,37 bill. | 2019 | 1,41 bill. |
| 1998 | 949 mil M | 2009 | 1,48 bill. | 2020 | 1,56 bill. |
| 1999 | 1 bill. | 2010 | 1,6 bill. | 2021 | 1,7 bill. |
| 2000 | 958 mil M | 2011 | 1,63 bill. | 2022 | 1,83 bill. |
| 2001 | 1,01 bill. | 2012 | 1,65 bill. | 2023 | 1,93 bill. |
| 2002 | 1,08 bill. | 2013 | 1,66 bill. | 2024 | 1,99 bill. |
| 2003 | 1,17 bill. | 2014 | 1,63 bill. | 2025 | 2,11 bill. |
| 2004 | 1,26 bill. | 2015 | 1,6 bill. | 2026 | 2,28 bill. |
| 2005 | 1,33 bill. | 2016 | 1,56 bill. | | |