Show data table
| 1990 | 14.5% | 2003 | 14.1% | 2016 | 13.7% |
| 1991 | 11.6% | 2004 | 13.6% | 2017 | 13.3% |
| 1992 | 12.2% | 2005 | 13.8% | 2018 | 13.2% |
| 1993 | 12.3% | 2006 | 14.1% | 2019 | 14.9% |
| 1994 | 12% | 2007 | 15.2% | 2020 | 13.8% |
| 1995 | 12.7% | 2008 | 15.4% | 2021 | 15.5% |
| 1996 | 13% | 2009 | 13.4% | 2022 | 16% |
| 1997 | 12.9% | 2010 | 13.1% | 2023 | 15.1% |
| 1998 | 13.1% | 2011 | 13.3% | 2024 | 14.9% |
| 1999 | 13.8% | 2012 | 13.1% | 2025 | 14.4% |
| 2000 | 13.2% | 2013 | 13.3% | 2026 | 14.2% |
| 2001 | 13.8% | 2014 | 12.9% | | |
| 2002 | 13.6% | 2015 | 13.2% | | |
Show data table
| 1990 | 76B | 2003 | 973B | 2016 | 4.38T |
| 1991 | 102B | 2004 | 1.11T | 2017 | 4.56T |
| 1992 | 141B | 2005 | 1.32T | 2018 | 4.77T |
| 1993 | 168B | 2006 | 1.64T | 2019 | 5.68T |
| 1994 | 197B | 2007 | 2.1T | 2020 | 5.08T |
| 1995 | 265B | 2008 | 2.49T | 2021 | 6.33T |
| 1996 | 314B | 2009 | 2.36T | 2022 | 7.34T |
| 1997 | 378B | 2010 | 2.59T | 2023 | 7.18T |
| 1998 | 460B | 2011 | 2.87T | 2024 | 7.41T |
| 1999 | 563B | 2012 | 3.12T | 2025 | 7.47T |
| 2000 | 610B | 2013 | 3.38T | 2026 | 7.72T |
| 2001 | 726B | 2014 | 3.63T | | |
| 2002 | 809B | 2015 | 3.99T | | |
Show data table
| 1990 | 18.9% | 2003 | 17.6% | 2016 | 18.8% |
| 1991 | 14% | 2004 | 17% | 2017 | 19.2% |
| 1992 | 13.7% | 2005 | 15.9% | 2018 | 18.9% |
| 1993 | 13.8% | 2006 | 15.2% | 2019 | 21.6% |
| 1994 | 17.4% | 2007 | 14.6% | 2020 | 22.1% |
| 1995 | 16.4% | 2008 | 15.2% | 2021 | 20.6% |
| 1996 | 17.3% | 2009 | 16.7% | 2022 | 18.7% |
| 1997 | 16.3% | 2010 | 18% | 2023 | 18.3% |
| 1998 | 16% | 2011 | 17.2% | 2024 | 18.6% |
| 1999 | 16.7% | 2012 | 17.3% | 2025 | 17.8% |
| 2000 | 16.9% | 2013 | 18.5% | 2026 | 17.9% |
| 2001 | 17.3% | 2014 | 18.4% | | |
| 2002 | 18.6% | 2015 | 18.8% | | |
Show data table
| 1990 | 99.1B | 2003 | 1.21T | 2016 | 6.01T |
| 1991 | 123B | 2004 | 1.39T | 2017 | 6.58T |
| 1992 | 158B | 2005 | 1.52T | 2018 | 6.81T |
| 1993 | 188B | 2006 | 1.76T | 2019 | 8.2T |
| 1994 | 287B | 2007 | 2.03T | 2020 | 8.14T |
| 1995 | 341B | 2008 | 2.46T | 2021 | 8.38T |
| 1996 | 419B | 2009 | 2.94T | 2022 | 8.6T |
| 1997 | 477B | 2010 | 3.57T | 2023 | 8.71T |
| 1998 | 564B | 2011 | 3.71T | 2024 | 9.27T |
| 1999 | 681B | 2012 | 4.12T | 2025 | 9.21T |
| 2000 | 781B | 2013 | 4.72T | 2026 | 9.69T |
| 2001 | 908B | 2014 | 5.15T | | |
| 2002 | 1.11T | 2015 | 5.66T | | |