Show data table
| 1990 | 23.2% | 2003 | 21.8% | 2016 | 22.7% |
| 1991 | 22.8% | 2004 | 22.9% | 2017 | 22.9% |
| 1992 | 23% | 2005 | 24.8% | 2018 | 24.1% |
| 1993 | 22.6% | 2006 | 26.2% | 2019 | 23.8% |
| 1994 | 22.1% | 2007 | 27.3% | 2020 | 22% |
| 1995 | 22.6% | 2008 | 25.7% | 2021 | 26.1% |
| 1996 | 22.7% | 2009 | 20.7% | 2022 | 28.1% |
| 1997 | 22.6% | 2010 | 23.1% | 2023 | 25.1% |
| 1998 | 22.3% | 2011 | 24.3% | 2024 | 23.9% |
| 1999 | 21.7% | 2012 | 23.8% | 2025 | 23.6% |
| 2000 | 22.2% | 2013 | 22.6% | 2026 | 23.6% |
| 2001 | 22.7% | 2014 | 22.4% | | |
| 2002 | 22% | 2015 | 22.9% | | |
Show data table
| 1990 | 2.34T | 2003 | 11.53T | 2016 | 38.32T |
| 1991 | 3.03T | 2004 | 13.81T | 2017 | 41T |
| 1992 | 3.87T | 2005 | 16.99T | 2018 | 45.72T |
| 1993 | 4.54T | 2006 | 21.41T | 2019 | 46.47T |
| 1994 | 5.32T | 2007 | 24.58T | 2020 | 44.26T |
| 1995 | 6.62T | 2008 | 24.14T | 2021 | 62.46T |
| 1996 | 7.36T | 2009 | 19.92T | 2022 | 73.88T |
| 1997 | 8.13T | 2010 | 25.59T | 2023 | 70.81T |
| 1998 | 8.41T | 2011 | 29.54T | 2024 | 74.52T |
| 1999 | 8.34T | 2012 | 30.9T | 2025 | 79.73T |
| 2000 | 9.36T | 2013 | 31.09T | 2026 | 86.29T |
| 2001 | 10.3T | 2014 | 33.08T | | |
| 2002 | 10.67T | 2015 | 36.39T | | |
Show data table
| 1990 | 21% | 2003 | 22.2% | 2016 | 25.4% |
| 1991 | 21.2% | 2004 | 20.8% | 2017 | 25.5% |
| 1992 | 20.9% | 2005 | 20.2% | 2018 | 25.6% |
| 1993 | 21.2% | 2006 | 18.7% | 2019 | 26.5% |
| 1994 | 20.6% | 2007 | 19.3% | 2020 | 29.1% |
| 1995 | 19.5% | 2008 | 21.8% | 2021 | 33.6% |
| 1996 | 20.6% | 2009 | 25% | 2022 | 26.7% |
| 1997 | 20.6% | 2010 | 23.5% | 2023 | 27.4% |
| 1998 | 21.9% | 2011 | 22.9% | 2024 | 26.7% |
| 1999 | 23.7% | 2012 | 23.1% | 2025 | 26.4% |
| 2000 | 22.9% | 2013 | 23.1% | 2026 | 26.1% |
| 2001 | 23.2% | 2014 | 23.9% | | |
| 2002 | 23.2% | 2015 | 25% | | |
Show data table
| 1990 | 2.12T | 2003 | 11.75T | 2016 | 42.81T |
| 1991 | 2.83T | 2004 | 12.57T | 2017 | 45.71T |
| 1992 | 3.51T | 2005 | 13.86T | 2018 | 48.52T |
| 1993 | 4.26T | 2006 | 15.28T | 2019 | 51.81T |
| 1994 | 4.97T | 2007 | 17.41T | 2020 | 58.54T |
| 1995 | 5.71T | 2008 | 20.45T | 2021 | 80.48T |
| 1996 | 6.68T | 2009 | 24.01T | 2022 | 70.3T |
| 1997 | 7.4T | 2010 | 26T | 2023 | 77.22T |
| 1998 | 8.27T | 2011 | 27.81T | 2024 | 83.29T |
| 1999 | 9.11T | 2012 | 30.01T | 2025 | 89.13T |
| 2000 | 9.65T | 2013 | 31.74T | 2026 | 95.31T |
| 2001 | 10.53T | 2014 | 35.29T | | |
| 2002 | 11.24T | 2015 | 39.7T | | |