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| 1991 | 76,7% | 2003 | 85,9% | 2015 | 69,8% |
| 1992 | 78,8% | 2004 | 84,9% | 2016 | 69,8% |
| 1993 | 78,3% | 2005 | 82,4% | 2017 | 70,8% |
| 1994 | 74,8% | 2006 | 77,9% | 2018 | 71,7% |
| 1995 | 70,9% | 2007 | 75,4% | 2019 | 76,7% |
| 1996 | 67,1% | 2008 | 74,3% | 2020 | 90,6% |
| 1997 | 69% | 2009 | 72,7% | 2021 | 85,7% |
| 1998 | 69,3% | 2010 | 67,7% | 2022 | 84,6% |
| 1999 | 71,3% | 2011 | 68,7% | 2023 | 85% |
| 2000 | 74,9% | 2012 | 68,1% | 2024 | 84,8% |
| 2001 | 80,1% | 2013 | 68% | 2025 | 84,1% |
| 2002 | 84,3% | 2014 | 67,6% | 2026 | 83,4% |
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| 1991 | 5,08 bill. | 2003 | 23,98 bill. | 2015 | 95,06 bill. |
| 1992 | 6 bill. | 2004 | 27,05 bill. | 2016 | 106,05 bill. |
| 1993 | 6,86 bill. | 2005 | 29,92 bill. | 2017 | 119,06 bill. |
| 1994 | 7,68 bill. | 2006 | 33,14 bill. | 2018 | 133 bill. |
| 1995 | 8,54 bill. | 2007 | 36,94 bill. | 2019 | 150,9 bill. |
| 1996 | 9,36 bill. | 2008 | 40,99 bill. | 2020 | 175,57 bill. |
| 1997 | 10,66 bill. | 2009 | 46,31 bill. | 2021 | 196,97 bill. |
| 1998 | 12,28 bill. | 2010 | 51,67 bill. | 2022 | 220,95 bill. |
| 1999 | 14,17 bill. | 2011 | 60,02 bill. | 2023 | 246,39 bill. |
| 2000 | 16,04 bill. | 2012 | 67,59 bill. | 2024 | 269,67 bill. |
| 2001 | 18,55 bill. | 2013 | 76,01 bill. | 2025 | 291,33 bill. |
| 2002 | 21,01 bill. | 2014 | 83,67 bill. | 2026 | 320,55 bill. |