Show data table
| 1980 | 14.4B | 1996 | 45.3B | 2012 | 102B |
| 1981 | 16B | 1997 | 48.2B | 2013 | 102B |
| 1982 | 16.8B | 1998 | 54.1B | 2014 | 102B |
| 1983 | 17.3B | 1999 | 57.8B | 2015 | 103B |
| 1984 | 19.2B | 2000 | 61.7B | 2016 | 104B |
| 1985 | 20.3B | 2001 | 69.7B | 2017 | 103B |
| 1986 | 22B | 2002 | 72.5B | 2018 | 101B |
| 1987 | 23.9B | 2003 | 75.8B | 2019 | 105B |
| 1988 | 26.2B | 2004 | 80.3B | 2020 | 103B |
| 1989 | 28.3B | 2005 | 83.9B | 2021 | 106B |
| 1990 | 30.6B | 2006 | 87.3B | 2022 | 114B |
| 1991 | 32.3B | 2007 | 89.5B | 2023 | 118B |
| 1992 | 34.6B | 2008 | 93.6B | 2024 | 126B |
| 1993 | 36.9B | 2009 | 96.4B | 2025 | 127B |
| 1994 | 39.7B | 2010 | 98.4B | 2026 | 129B |
| 1995 | 42.6B | 2011 | 100B | | |
Show data table
| 1980 | 14.4B | 1996 | 45.3B | 2012 | 102B |
| 1981 | 16B | 1997 | 48.2B | 2013 | 102B |
| 1982 | 16.8B | 1998 | 54.1B | 2014 | 102B |
| 1983 | 17.3B | 1999 | 57.8B | 2015 | 103B |
| 1984 | 19.2B | 2000 | 61.7B | 2016 | 104B |
| 1985 | 20.3B | 2001 | 69.7B | 2017 | 103B |
| 1986 | 22B | 2002 | 72.5B | 2018 | 101B |
| 1987 | 23.9B | 2003 | 75.8B | 2019 | 105B |
| 1988 | 26.2B | 2004 | 80.3B | 2020 | 103B |
| 1989 | 28.3B | 2005 | 83.9B | 2021 | 106B |
| 1990 | 30.6B | 2006 | 87.3B | 2022 | 114B |
| 1991 | 32.3B | 2007 | 89.5B | 2023 | 118B |
| 1992 | 34.6B | 2008 | 93.6B | 2024 | 126B |
| 1993 | 36.9B | 2009 | 96.4B | 2025 | 127B |
| 1994 | 39.7B | 2010 | 98.4B | 2026 | 129B |
| 1995 | 42.6B | 2011 | 100B | | |
Show data table
| 1980 | 48.7B | 1996 | 86.3B | 2012 | 111B |
| 1981 | 49.2B | 1997 | 90.5B | 2013 | 110B |
| 1982 | 47.7B | 1998 | 96.4B | 2014 | 109B |
| 1983 | 48B | 1999 | 101B | 2015 | 108B |
| 1984 | 51.5B | 2000 | 104B | 2016 | 107B |
| 1985 | 52.5B | 2001 | 114B | 2017 | 103B |
| 1986 | 56.8B | 2002 | 116B | 2018 | 98.9B |
| 1987 | 59.6B | 2003 | 119B | 2019 | 101B |
| 1988 | 63.5B | 2004 | 121B | 2020 | 96.4B |
| 1989 | 66.6B | 2005 | 119B | 2021 | 96.8B |
| 1990 | 69.1B | 2006 | 117B | 2022 | 99.6B |
| 1991 | 70.7B | 2007 | 116B | 2023 | 100B |
| 1992 | 74B | 2008 | 114B | 2024 | 103B |
| 1993 | 77.4B | 2009 | 112B | 2025 | 103B |
| 1994 | 80.6B | 2010 | 111B | 2026 | 102B |
| 1995 | 84.3B | 2011 | 111B | | |