Show data table
| 1985 | 64.1% | 1999 | 32% | 2013 | 34.6% |
| 1986 | 68.5% | 2000 | 30% | 2014 | 34.2% |
| 1987 | 62.9% | 2001 | 28.2% | 2015 | 34.2% |
| 1988 | 54.7% | 2002 | 26.4% | 2016 | 33.4% |
| 1989 | 54.9% | 2003 | 24.7% | 2017 | 31.1% |
| 1990 | 55.5% | 2004 | 22.5% | 2018 | 28.1% |
| 1991 | 58% | 2005 | 20.8% | 2019 | 31.8% |
| 1992 | 58.7% | 2006 | 18.4% | 2020 | 43.2% |
| 1993 | 54.6% | 2007 | 16.3% | 2021 | 47.5% |
| 1994 | 48.9% | 2008 | 19% | 2022 | 46.9% |
| 1995 | 43.5% | 2009 | 24.3% | 2023 | 47.3% |
| 1996 | 37.3% | 2010 | 29.6% | 2024 | 51.4% |
| 1997 | 34.6% | 2011 | 34.7% | 2025 | 54.7% |
| 1998 | 34.5% | 2012 | 35.7% | 2026 | 56.7% |
Show data table
| 1985 | 29B | 1999 | 35.6B | 2013 | 78.9B |
| 1986 | 35.9B | 2000 | 35.5B | 2014 | 82.3B |
| 1987 | 39.3B | 2001 | 35.6B | 2015 | 86.1B |
| 1988 | 37.9B | 2002 | 35.3B | 2016 | 89B |
| 1989 | 40.5B | 2003 | 35B | 2017 | 89.2B |
| 1990 | 42.5B | 2004 | 34.4B | 2018 | 85B |
| 1991 | 43.6B | 2005 | 33.4B | 2019 | 102B |
| 1992 | 45.3B | 2006 | 31.1B | 2020 | 140B |
| 1993 | 45.2B | 2007 | 29.9B | 2021 | 168B |
| 1994 | 43.6B | 2008 | 36B | 2022 | 181B |
| 1995 | 41.2B | 2009 | 46.7B | 2023 | 195B |
| 1996 | 37.4B | 2010 | 59.8B | 2024 | 220B |
| 1997 | 36B | 2011 | 73.3B | 2025 | 244B |
| 1998 | 36.5B | 2012 | 77.2B | 2026 | 264B |
Show data table
| 1984 | 153.3% | 1999 | 29.1% | 2014 | 7.9% |
| 1985 | 125.7% | 2000 | 30.3% | 2015 | 7.3% |
| 1986 | 102.7% | 2001 | 27.1% | 2016 | 6.6% |
| 1987 | 77% | 2002 | 23.2% | 2017 | 5.6% |
| 1988 | 64.6% | 2003 | 18.4% | 2018 | 4.7% |
| 1989 | 59.6% | 2004 | 12.9% | 2019 | 6.9% |
| 1990 | 58.1% | 2005 | 7.5% | 2020 | 10.3% |
| 1991 | 67.4% | 2006 | 2.8% | 2021 | 14% |
| 1992 | 71% | 2007 | -0.8% | 2022 | 18% |
| 1993 | 63.3% | 2008 | -2.2% | 2023 | 19.5% |
| 1994 | 52.5% | 2009 | -1% | 2024 | 22.4% |
| 1995 | 42.8% | 2010 | 2.5% | 2025 | 25.8% |
| 1996 | 35.6% | 2011 | 6.6% | 2026 | 27.9% |
| 1997 | 32.1% | 2012 | 8.5% | | |
| 1998 | 31.2% | 2013 | 8.6% | | |
Show data table
| 1984 | 59.3B | 1999 | 32.3B | 2014 | 19.1B |
| 1985 | 56.9B | 2000 | 35.8B | 2015 | 18.5B |
| 1986 | 53.8B | 2001 | 34.2B | 2016 | 17.7B |
| 1987 | 48.1B | 2002 | 31B | 2017 | 15.9B |
| 1988 | 44.8B | 2003 | 26.1B | 2018 | 14.3B |
| 1989 | 44B | 2004 | 19.7B | 2019 | 22B |
| 1990 | 44.5B | 2005 | 12.1B | 2020 | 33.5B |
| 1991 | 50.7B | 2006 | 4.8B | 2021 | 49.3B |
| 1992 | 54.9B | 2007 | -1.37B | 2022 | 69.3B |
| 1993 | 52.4B | 2008 | -4.13B | 2023 | 80.7B |
| 1994 | 46.8B | 2009 | -1.96B | 2024 | 96B |
| 1995 | 40.5B | 2010 | 5.03B | 2025 | 115B |
| 1996 | 35.8B | 2011 | 13.9B | 2026 | 130B |
| 1997 | 33.3B | 2012 | 18.4B | | |
| 1998 | 33B | 2013 | 19.6B | | |