Show data table
| 1980 | 10.7% | 1996 | 10.7% | 2012 | 11.7% |
| 1981 | 11.1% | 1997 | 9.9% | 2013 | 12% |
| 1982 | 10.5% | 1998 | 9.7% | 2014 | 13.7% |
| 1983 | 10.7% | 1999 | 10.2% | 2015 | 13.1% |
| 1984 | 12% | 2000 | 10.6% | 2016 | 13.8% |
| 1985 | 11.5% | 2001 | 10.5% | 2017 | 14% |
| 1986 | 12.7% | 2002 | 11.7% | 2018 | 13.4% |
| 1987 | 13.2% | 2003 | 12.7% | 2019 | 11.3% |
| 1988 | 11.3% | 2004 | 10.8% | 2020 | 13.3% |
| 1989 | 11.8% | 2005 | 10.7% | 2021 | 12.4% |
| 1990 | 12.1% | 2006 | 11.7% | 2022 | 12.1% |
| 1991 | 10.6% | 2007 | 11.9% | 2023 | 11.5% |
| 1992 | 11.4% | 2008 | 12.1% | 2024 | 12.6% |
| 1993 | 11.5% | 2009 | 12.8% | 2025 | 15.8% |
| 1994 | 10.9% | 2010 | 12.9% | 2026 | 15.8% |
| 1995 | 10.1% | 2011 | 11.7% | | |
Show data table
| 1980 | 40.7B | 1996 | 371B | 2012 | 2.61T |
| 1981 | 50.3B | 1997 | 392B | 2013 | 3.01T |
| 1982 | 55.3B | 1998 | 423B | 2014 | 3.84T |
| 1983 | 63.4B | 1999 | 489B | 2015 | 3.98T |
| 1984 | 82.1B | 2000 | 546B | 2016 | 4.51T |
| 1985 | 88.5B | 2001 | 594B | 2017 | 4.96T |
| 1986 | 106B | 2002 | 707B | 2018 | 5.26T |
| 1987 | 123B | 2003 | 838B | 2019 | 4.93T |
| 1988 | 124B | 2004 | 825B | 2020 | 6.31T |
| 1989 | 148B | 2005 | 919B | 2021 | 6.93T |
| 1990 | 169B | 2006 | 1.13T | 2022 | 8.08T |
| 1991 | 176B | 2007 | 1.33T | 2023 | 9.65T |
| 1992 | 224B | 2008 | 1.53T | 2024 | 13.32T |
| 1993 | 250B | 2009 | 1.88T | 2025 | 18.05T |
| 1994 | 278B | 2010 | 2.13T | 2026 | 20.13T |
| 1995 | 307B | 2011 | 2.31T | | |
Show data table
| 1993 | 17% | 2005 | 13% | 2017 | 19.1% |
| 1994 | 14.5% | 2006 | 14.5% | 2018 | 19.1% |
| 1995 | 14% | 2007 | 16.1% | 2019 | 19.1% |
| 1996 | 15% | 2008 | 18% | 2020 | 20.3% |
| 1997 | 13.7% | 2009 | 17.3% | 2021 | 18.5% |
| 1998 | 14.1% | 2010 | 18.3% | 2022 | 20% |
| 1999 | 13.2% | 2011 | 17.9% | 2023 | 19.3% |
| 2000 | 13.8% | 2012 | 19.4% | 2024 | 19.4% |
| 2001 | 12.9% | 2013 | 19.5% | 2025 | 21.2% |
| 2002 | 14.4% | 2014 | 18.1% | 2026 | 19% |
| 2003 | 12.9% | 2015 | 17.8% | | |
| 2004 | 12.1% | 2016 | 17.7% | | |
Show data table
| 1993 | 370B | 2005 | 1.12T | 2017 | 6.8T |
| 1994 | 370B | 2006 | 1.4T | 2018 | 7.49T |
| 1995 | 426B | 2007 | 1.8T | 2019 | 8.35T |
| 1996 | 521B | 2008 | 2.28T | 2020 | 9.65T |
| 1997 | 545B | 2009 | 2.54T | 2021 | 10.31T |
| 1998 | 618B | 2010 | 3.02T | 2022 | 13.3T |
| 1999 | 636B | 2011 | 3.54T | 2023 | 16.14T |
| 2000 | 711B | 2012 | 4.34T | 2024 | 20.48T |
| 2001 | 732B | 2013 | 4.88T | 2025 | 24.17T |
| 2002 | 866B | 2014 | 5.06T | 2026 | 24.21T |
| 2003 | 846B | 2015 | 5.43T | | |
| 2004 | 923B | 2016 | 5.8T | | |