Show data table
| 1980 | 22.8% | 1996 | 103.7% | 2012 | 164.3% |
| 1981 | 27.1% | 1997 | 102.6% | 2013 | 180.5% |
| 1982 | 29.7% | 1998 | 100.8% | 2014 | 182.8% |
| 1983 | 34.1% | 1999 | 102.8% | 2015 | 180% |
| 1984 | 40.6% | 2000 | 108.9% | 2016 | 183.7% |
| 1985 | 47.3% | 2001 | 110.5% | 2017 | 182.6% |
| 1986 | 47.8% | 2002 | 107.9% | 2018 | 189.6% |
| 1987 | 53.2% | 2003 | 104.3% | 2019 | 183.7% |
| 1988 | 57.9% | 2004 | 105.5% | 2020 | 209.9% |
| 1989 | 60.7% | 2005 | 109.9% | 2021 | 197.8% |
| 1990 | 74.2% | 2006 | 105.3% | 2022 | 179.2% |
| 1991 | 75.7% | 2007 | 104.6% | 2023 | 165.5% |
| 1992 | 81.1% | 2008 | 110.9% | 2024 | 155.4% |
| 1993 | 101.7% | 2009 | 128.5% | 2025 | 145.7% |
| 1994 | 99.7% | 2010 | 147.8% | 2026 | 136.9% |
| 1995 | 100.4% | 2011 | 175.1% | | |
Show data table
| 1980 | 1.6B | 1996 | 104B | 2012 | 305B |
| 1981 | 2.27B | 1997 | 114B | 2013 | 322B |
| 1982 | 3.14B | 1998 | 122B | 2014 | 322B |
| 1983 | 4.29B | 1999 | 132B | 2015 | 316B |
| 1984 | 6.36B | 2000 | 148B | 2016 | 320B |
| 1985 | 9.04B | 2001 | 163B | 2017 | 324B |
| 1986 | 10.9B | 2002 | 171B | 2018 | 342B |
| 1987 | 13.7B | 2003 | 182B | 2019 | 340B |
| 1988 | 18.1B | 2004 | 199B | 2020 | 352B |
| 1989 | 22.6B | 2005 | 214B | 2021 | 365B |
| 1990 | 33.3B | 2006 | 226B | 2022 | 371B |
| 1991 | 42B | 2007 | 240B | 2023 | 372B |
| 1992 | 52B | 2008 | 265B | 2024 | 368B |
| 1993 | 73.4B | 2009 | 301B | 2025 | 362B |
| 1994 | 81.6B | 2010 | 331B | 2026 | 357B |
| 1995 | 92.1B | 2011 | 356B | | |