Show data table
| 1980 | 80.5B | 1996 | 236B | 2012 | 407B |
| 1981 | 69.7B | 1997 | 212B | 2013 | 427B |
| 1982 | 69.7B | 1998 | 217B | 2014 | 439B |
| 1983 | 70.6B | 1999 | 217B | 2015 | 380B |
| 1984 | 66.6B | 2000 | 196B | 2016 | 394B |
| 1985 | 68.2B | 2001 | 196B | 2017 | 415B |
| 1986 | 96.8B | 2002 | 213B | 2018 | 453B |
| 1987 | 121B | 2003 | 261B | 2019 | 443B |
| 1988 | 133B | 2004 | 299B | 2020 | 434B |
| 1989 | 133B | 2005 | 314B | 2021 | 481B |
| 1990 | 166B | 2006 | 334B | 2022 | 474B |
| 1991 | 173B | 2007 | 387B | 2023 | 517B |
| 1992 | 194B | 2008 | 429B | 2024 | 535B |
| 1993 | 189B | 2009 | 399B | 2025 | 580B |
| 1994 | 203B | 2010 | 390B | 2026 | 624B |
| 1995 | 240B | 2011 | 429B | | |
Show data table
| 1980 | 75.6B | 1996 | 182B | 2012 | 317B |
| 1981 | 80.4B | 1997 | 188B | 2013 | 321B |
| 1982 | 86.3B | 1998 | 195B | 2014 | 330B |
| 1983 | 92B | 1999 | 203B | 2015 | 342B |
| 1984 | 96.6B | 2000 | 212B | 2016 | 356B |
| 1985 | 102B | 2001 | 219B | 2017 | 367B |
| 1986 | 107B | 2002 | 225B | 2018 | 383B |
| 1987 | 111B | 2003 | 231B | 2019 | 396B |
| 1988 | 119B | 2004 | 241B | 2020 | 380B |
| 1989 | 127B | 2005 | 252B | 2021 | 406B |
| 1990 | 137B | 2006 | 266B | 2022 | 449B |
| 1991 | 147B | 2007 | 282B | 2023 | 478B |
| 1992 | 155B | 2008 | 292B | 2024 | 494B |
| 1993 | 160B | 2009 | 286B | 2025 | 514B |
| 1994 | 168B | 2010 | 294B | 2026 | 529B |
| 1995 | 176B | 2011 | 308B | | |
Show data table
| 1980 | 192B | 1996 | 268B | 2012 | 366B |
| 1981 | 192B | 1997 | 274B | 2013 | 365B |
| 1982 | 195B | 1998 | 283B | 2014 | 368B |
| 1983 | 201B | 1999 | 294B | 2015 | 373B |
| 1984 | 201B | 2000 | 303B | 2016 | 381B |
| 1985 | 206B | 2001 | 307B | 2017 | 389B |
| 1986 | 211B | 2002 | 312B | 2018 | 399B |
| 1987 | 214B | 2003 | 316B | 2019 | 406B |
| 1988 | 216B | 2004 | 324B | 2020 | 380B |
| 1989 | 225B | 2005 | 331B | 2021 | 399B |
| 1990 | 235B | 2006 | 342B | 2022 | 420B |
| 1991 | 243B | 2007 | 355B | 2023 | 417B |
| 1992 | 248B | 2008 | 360B | 2024 | 414B |
| 1993 | 249B | 2009 | 347B | 2025 | 417B |
| 1994 | 255B | 2010 | 353B | 2026 | 420B |
| 1995 | 262B | 2011 | 364B | | |