Show data table
| 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% | | |
Show data table
| 1993 | 1.24T | 2005 | 3.83T | 2017 | 6.31T |
| 1994 | 1.23T | 2006 | 3.75T | 2018 | 6.78T |
| 1995 | 1.32T | 2007 | 3.61T | 2019 | 7.22T |
| 1996 | 1.32T | 2008 | 4.03T | 2020 | 9.27T |
| 1997 | 1.58T | 2009 | 4.18T | 2021 | 11.06T |
| 1998 | 1.55T | 2010 | 4.47T | 2022 | 12.64T |
| 1999 | 1.81T | 2011 | 4.61T | 2023 | 13.73T |
| 2000 | 2.19T | 2012 | 5.05T | 2024 | 14.98T |
| 2001 | 2.39T | 2013 | 5.29T | 2025 | 16.63T |
| 2002 | 2.84T | 2014 | 5.32T | 2026 | 18.21T |
| 2003 | 3.37T | 2015 | 5.53T | | |
| 2004 | 3.78T | 2016 | 5.66T | | |