Show data table
| 1984 | 150.1% | 1999 | 64.5% | 2014 | 12% |
| 1985 | 142.8% | 2000 | 60.7% | 2015 | 13.6% |
| 1986 | 136.6% | 2001 | 53% | 2016 | 15.7% |
| 1987 | 128.8% | 2002 | 48.2% | 2017 | 19.4% |
| 1988 | 119.9% | 2003 | 44.4% | 2018 | 17.5% |
| 1989 | 113.7% | 2004 | 42.4% | 2019 | 22.4% |
| 1990 | 108.1% | 2005 | 39.9% | 2020 | 25.5% |
| 1991 | 103.9% | 2006 | 38.5% | 2021 | 27.9% |
| 1992 | 101% | 2007 | 36.2% | 2022 | 30.2% |
| 1993 | 95.7% | 2008 | 33.4% | 2023 | 31.5% |
| 1994 | 87.8% | 2009 | 31.8% | 2024 | 30% |
| 1995 | 77.7% | 2010 | 30.1% | 2025 | 29.5% |
| 1996 | 75.4% | 2011 | 27.6% | 2026 | 32.4% |
| 1997 | 70.9% | 2012 | 25% | | |
| 1998 | 69.4% | 2013 | 10.5% | | |
Show data table
| 1984 | 124B | 1999 | 111B | 2014 | 51.1B |
| 1985 | 123B | 2000 | 110B | 2015 | 58.3B |
| 1986 | 122B | 2001 | 108B | 2016 | 70.7B |
| 1987 | 121B | 2002 | 107B | 2017 | 91.2B |
| 1988 | 120B | 2003 | 106B | 2018 | 85.9B |
| 1989 | 119B | 2004 | 104B | 2019 | 117B |
| 1990 | 118B | 2005 | 103B | 2020 | 134B |
| 1991 | 117B | 2006 | 104B | 2021 | 148B |
| 1992 | 117B | 2007 | 103B | 2022 | 172B |
| 1993 | 116B | 2008 | 102B | 2023 | 190B |
| 1994 | 115B | 2009 | 101B | 2024 | 197B |
| 1995 | 114B | 2010 | 102B | 2025 | 207B |
| 1996 | 113B | 2011 | 99.7B | 2026 | 245B |
| 1997 | 113B | 2012 | 97.1B | | |
| 1998 | 112B | 2013 | 43.3B | | |