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| 1993 | 73,9% | 2005 | 64,7% | 2017 | 38,1% |
| 1994 | 63,6% | 2006 | 57,2% | 2018 | 37,1% |
| 1995 | 60,8% | 2007 | 50,2% | 2019 | 37% |
| 1996 | 53,1% | 2008 | 50% | 2020 | 51,6% |
| 1997 | 56,9% | 2009 | 49,8% | 2021 | 57% |
| 1998 | 50,8% | 2010 | 47,6% | 2022 | 57,4% |
| 1999 | 54,2% | 2011 | 45,4% | 2023 | 56,5% |
| 2000 | 59,2% | 2012 | 45,7% | 2024 | 56,6% |
| 2001 | 59,5% | 2013 | 43,9% | 2025 | 59,4% |
| 2002 | 65,2% | 2014 | 40,3% | 2026 | 60,2% |
| 2003 | 71,4% | 2015 | 39,7% | | |
| 2004 | 71,1% | 2016 | 37,4% | | |
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| 1993 | 1,24 bill. | 2005 | 3,83 bill. | 2017 | 6,31 bill. |
| 1994 | 1,23 bill. | 2006 | 3,75 bill. | 2018 | 6,78 bill. |
| 1995 | 1,32 bill. | 2007 | 3,61 bill. | 2019 | 7,22 bill. |
| 1996 | 1,32 bill. | 2008 | 4,03 bill. | 2020 | 9,27 bill. |
| 1997 | 1,58 bill. | 2009 | 4,18 bill. | 2021 | 11,06 bill. |
| 1998 | 1,55 bill. | 2010 | 4,47 bill. | 2022 | 12,64 bill. |
| 1999 | 1,81 bill. | 2011 | 4,61 bill. | 2023 | 13,73 bill. |
| 2000 | 2,19 bill. | 2012 | 5,05 bill. | 2024 | 14,98 bill. |
| 2001 | 2,39 bill. | 2013 | 5,29 bill. | 2025 | 16,63 bill. |
| 2002 | 2,84 bill. | 2014 | 5,32 bill. | 2026 | 18,21 bill. |
| 2003 | 3,37 bill. | 2015 | 5,53 bill. | | |
| 2004 | 3,78 bill. | 2016 | 5,66 bill. | | |