Show data table
| 1970 | 20.3M | 1989 | 147M | 2008 | 347M |
| 1971 | 21.5M | 1990 | 181M | 2009 | 343M |
| 1972 | 24.9M | 1991 | 178M | 2010 | 354M |
| 1973 | 31.6M | 1992 | 184M | 2011 | 347M |
| 1974 | 34.6M | 1993 | 168M | 2012 | 354M |
| 1975 | 46.8M | 1994 | 94.5M | 2013 | 393M |
| 1976 | 48.5M | 1995 | 114M | 2014 | 402M |
| 1977 | 55.2M | 1996 | 117M | 2015 | 354M |
| 1978 | 71.4M | 1997 | 119M | 2016 | 387M |
| 1979 | 88.4M | 1998 | 137M | 2017 | 408M |
| 1980 | 99.9M | 1999 | 145M | 2018 | 430M |
| 1981 | 120M | 2000 | 123M | 2019 | 422M |
| 1982 | 132M | 2001 | 124M | 2020 | 393M |
| 1983 | 130M | 2002 | 146M | 2021 | 443M |
| 1984 | 127M | 2003 | 188M | 2022 | 417M |
| 1985 | 116M | 2004 | 221M | 2023 | 457M |
| 1986 | 145M | 2005 | 223M | 2024 | 535M |
| 1987 | 163M | 2006 | 257M | 2025 | 627M |
| 1988 | 154M | 2007 | 297M | | |
Show data table
| 1970 | 1.9% | 1989 | 1.3% | 2008 | 1.3% |
| 1971 | 1.8% | 1990 | 1.5% | 2009 | 1.2% |
| 1972 | 1.8% | 1991 | 1.5% | 2010 | 1.3% |
| 1973 | 1.8% | 1992 | 1.5% | 2011 | 1.1% |
| 1974 | 1.7% | 1993 | 1.3% | 2012 | 1.2% |
| 1975 | 1.7% | 1994 | 1.3% | 2013 | 1.2% |
| 1976 | 1.8% | 1995 | 1.3% | 2014 | 1.1% |
| 1977 | 1.7% | 1996 | 1.2% | 2015 | 1.1% |
| 1978 | 1.7% | 1997 | 1.3% | 2016 | 1.1% |
| 1979 | 1.7% | 1998 | 1.4% | 2017 | 1.1% |
| 1980 | 1.6% | 1999 | 1.4% | 2018 | 1.1% |
| 1981 | 1.8% | 2000 | 1.3% | 2019 | 1.1% |
| 1982 | 2% | 2001 | 1.3% | 2020 | 1% |
| 1983 | 1.9% | 2002 | 1.3% | 2021 | 1% |
| 1984 | 1.7% | 2003 | 1.4% | 2022 | 0.9% |
| 1985 | 1.3% | 2004 | 1.4% | 2023 | 0.9% |
| 1986 | 1.2% | 2005 | 1.1% | 2024 | 1% |
| 1987 | 1.3% | 2006 | 1.2% | 2025 | 1.1% |
| 1988 | 1.3% | 2007 | 1.2% | | |