Show data table
| 1980 | 76.8% | 1996 | 129% | 2012 | 104.3% |
| 1981 | 89.7% | 1997 | 124.3% | 2013 | 105% |
| 1982 | 99.6% | 1998 | 119.2% | 2014 | 106.6% |
| 1983 | 110.3% | 1999 | 115.4% | 2015 | 105.6% |
| 1984 | 114.6% | 2000 | 109.6% | 2016 | 105.5% |
| 1985 | 119.4% | 2001 | 108.2% | 2017 | 102.5% |
| 1986 | 124.7% | 2002 | 105.4% | 2018 | 100.1% |
| 1987 | 129.2% | 2003 | 101.7% | 2019 | 97.6% |
| 1988 | 129.7% | 2004 | 97.2% | 2020 | 111.2% |
| 1989 | 126.4% | 2005 | 95.1% | 2021 | 108.5% |
| 1990 | 130.3% | 2006 | 91.5% | 2022 | 103.1% |
| 1991 | 131.8% | 2007 | 87.3% | 2023 | 102.2% |
| 1992 | 134.7% | 2008 | 93.2% | 2024 | 103.9% |
| 1993 | 138.9% | 2009 | 99.9% | 2025 | 106.3% |
| 1994 | 137.1% | 2010 | 100.2% | 2026 | 109.2% |
| 1995 | 131.3% | 2011 | 102.7% | | |
Show data table
| 1980 | 68.6B | 1996 | 276B | 2012 | 405B |
| 1981 | 84B | 1997 | 278B | 2013 | 414B |
| 1982 | 101B | 1998 | 277B | 2014 | 432B |
| 1983 | 118B | 1999 | 280B | 2015 | 439B |
| 1984 | 133B | 2000 | 281B | 2016 | 452B |
| 1985 | 147B | 2001 | 286B | 2017 | 454B |
| 1986 | 161B | 2002 | 288B | 2018 | 460B |
| 1987 | 174B | 2003 | 286B | 2019 | 468B |
| 1988 | 187B | 2004 | 288B | 2020 | 516B |
| 1989 | 197B | 2005 | 295B | 2021 | 549B |
| 1990 | 215B | 2006 | 297B | 2022 | 579B |
| 1991 | 228B | 2007 | 300B | 2023 | 616B |
| 1992 | 245B | 2008 | 328B | 2024 | 644B |
| 1993 | 260B | 2009 | 347B | 2025 | 683B |
| 1994 | 271B | 2010 | 364B | 2026 | 719B |
| 1995 | 276B | 2011 | 389B | | |
Show data table
| 1998 | 119.2% | 2008 | 83.2% | 2018 | 86% |
| 1999 | 105.7% | 2009 | 88.2% | 2019 | 83.8% |
| 2000 | 99.9% | 2010 | 88.4% | 2020 | 95.6% |
| 2001 | 98.1% | 2011 | 90.9% | 2021 | 93.8% |
| 2002 | 95.4% | 2012 | 91.5% | 2022 | 89.4% |
| 2003 | 91.8% | 2013 | 91.4% | 2023 | 88.3% |
| 2004 | 86.9% | 2014 | 92.4% | 2024 | 90.4% |
| 2005 | 86.3% | 2015 | 92.2% | 2025 | 93.3% |
| 2006 | 82.7% | 2016 | 91.5% | 2026 | 96.5% |
| 2007 | 78.2% | 2017 | 88.4% | | |
Show data table
| 1998 | 277B | 2008 | 293B | 2018 | 395B |
| 1999 | 256B | 2009 | 307B | 2019 | 402B |
| 2000 | 256B | 2010 | 321B | 2020 | 443B |
| 2001 | 259B | 2011 | 344B | 2021 | 475B |
| 2002 | 261B | 2012 | 355B | 2022 | 502B |
| 2003 | 258B | 2013 | 361B | 2023 | 532B |
| 2004 | 258B | 2014 | 374B | 2024 | 561B |
| 2005 | 268B | 2015 | 383B | 2025 | 599B |
| 2006 | 269B | 2016 | 392B | 2026 | 635B |
| 2007 | 269B | 2017 | 392B | | |