Tableau de données
| 1980 | 157 M | 1996 | 611 M | 2012 | 1,91 Md |
| 1981 | 187 M | 1997 | 609 M | 2013 | 2,03 Md |
| 1982 | 149 M | 1998 | 648 M | 2014 | 2,04 Md |
| 1983 | 144 M | 1999 | 693 M | 2015 | 1,75 Md |
| 1984 | 146 M | 2000 | 699 M | 2016 | 1,85 Md |
| 1985 | 164 M | 2001 | 791 M | 2017 | 2 Md |
| 1986 | 212 M | 2002 | 867 M | 2018 | 2,21 Md |
| 1987 | 264 M | 2003 | 1,11 Md | 2019 | 2,25 Md |
| 1988 | 322 M | 2004 | 1,26 Md | 2020 | 1,83 Md |
| 1989 | 332 M | 2005 | 1,4 Md | 2021 | 2,05 Md |
| 1990 | 413 M | 2006 | 1,45 Md | 2022 | 2,25 Md |
| 1991 | 443 M | 2007 | 1,65 Md | 2023 | 2,5 Md |
| 1992 | 479 M | 2008 | 1,96 Md | 2024 | 2,73 Md |
| 1993 | 431 M | 2009 | 1,85 Md | 2025 | 3,08 Md |
| 1994 | 450 M | 2010 | 1,83 Md | 2026 | 3,45 Md |
| 1995 | 570 M | 2011 | 2,05 Md | | |
Tableau de données
| 1980 | 6,29 Md | 1996 | 50,5 Md | 2012 | 165 Md |
| 1981 | 9,1 Md | 1997 | 56,8 Md | 2013 | 169 Md |
| 1982 | 8,66 Md | 1998 | 63,6 Md | 2014 | 170 Md |
| 1983 | 10,3 Md | 1999 | 71,2 Md | 2015 | 174 Md |
| 1984 | 12,4 Md | 2000 | 81 Md | 2016 | 184 Md |
| 1985 | 15 Md | 2001 | 97,5 Md | 2017 | 195 Md |
| 1986 | 17 Md | 2002 | 102 Md | 2018 | 206 Md |
| 1987 | 19,1 Md | 2003 | 108 Md | 2019 | 222 Md |
| 1988 | 23,2 Md | 2004 | 112 Md | 2020 | 177 Md |
| 1989 | 25,9 Md | 2005 | 124 Md | 2021 | 191 Md |
| 1990 | 28,9 Md | 2006 | 128 Md | 2022 | 236 Md |
| 1991 | 31,6 Md | 2007 | 133 Md | 2023 | 255 Md |
| 1992 | 32,6 Md | 2008 | 148 Md | 2024 | 278 Md |
| 1993 | 34,6 Md | 2009 | 148 Md | 2025 | 301 Md |
| 1994 | 36,8 Md | 2010 | 152 Md | 2026 | 322 Md |
| 1995 | 43,8 Md | 2011 | 162 Md | | |
Tableau de données
| 1980 | 28 Md | 1996 | 64,2 Md | 2012 | 170 Md |
| 1981 | 30,4 Md | 1997 | 69,1 Md | 2013 | 171 Md |
| 1982 | 31,2 Md | 1998 | 74,9 Md | 2014 | 172 Md |
| 1983 | 34,2 Md | 1999 | 83,8 Md | 2015 | 174 Md |
| 1984 | 35,5 Md | 2000 | 89,9 Md | 2016 | 181 Md |
| 1985 | 38,6 Md | 2001 | 95,4 Md | 2017 | 190 Md |
| 1986 | 39,7 Md | 2002 | 100 Md | 2018 | 197 Md |
| 1987 | 41,4 Md | 2003 | 108 Md | 2019 | 210 Md |
| 1988 | 43,9 Md | 2004 | 113 Md | 2020 | 167 Md |
| 1989 | 46,4 Md | 2005 | 120 Md | 2021 | 178 Md |
| 1990 | 46,7 Md | 2006 | 131 Md | 2022 | 207 Md |
| 1991 | 47,3 Md | 2007 | 151 Md | 2023 | 216 Md |
| 1992 | 48,8 Md | 2008 | 161 Md | 2024 | 232 Md |
| 1993 | 52,4 Md | 2009 | 159 Md | 2025 | 245 Md |
| 1994 | 56 Md | 2010 | 162 Md | 2026 | 257 Md |
| 1995 | 60,2 Md | 2011 | 168 Md | | |