Tableau de données
| 1980 | 1,16 Bn | 1996 | 5,02 Bn | 2012 | 6,33 Bn |
| 1981 | 1,27 Bn | 1997 | 4,58 Bn | 2013 | 5,27 Bn |
| 1982 | 1,19 Bn | 1998 | 4,15 Bn | 2014 | 4,99 Bn |
| 1983 | 1,3 Bn | 1999 | 4,69 Bn | 2015 | 4,53 Bn |
| 1984 | 1,38 Bn | 2000 | 5,04 Bn | 2016 | 5,11 Bn |
| 1985 | 1,46 Bn | 2001 | 4,44 Bn | 2017 | 5,04 Bn |
| 1986 | 2,17 Bn | 2002 | 4,25 Bn | 2018 | 5,15 Bn |
| 1987 | 2,64 Bn | 2003 | 4,57 Bn | 2019 | 5,25 Bn |
| 1988 | 3,2 Bn | 2004 | 4,94 Bn | 2020 | 5,19 Bn |
| 1989 | 3,18 Bn | 2005 | 4,88 Bn | 2021 | 5,23 Bn |
| 1990 | 3,26 Bn | 2006 | 4,65 Bn | 2022 | 4,45 Bn |
| 1991 | 3,73 Bn | 2007 | 4,62 Bn | 2023 | 4,38 Bn |
| 1992 | 4,07 Bn | 2008 | 5,16 Bn | 2024 | 4,19 Bn |
| 1993 | 4,64 Bn | 2009 | 5,34 Bn | 2025 | 4,44 Bn |
| 1994 | 5,1 Bn | 2010 | 5,81 Bn | 2026 | 4,38 Bn |
| 1995 | 5,64 Bn | 2011 | 6,28 Bn | | |
Tableau de données
| 1980 | 261,93 Bn | 1996 | 546,23 Bn | 2012 | 505,38 Bn |
| 1981 | 280,89 Bn | 1997 | 554,11 Bn | 2013 | 514,55 Bn |
| 1982 | 295,21 Bn | 1998 | 543,3 Bn | 2014 | 528,22 Bn |
| 1983 | 308,74 Bn | 1999 | 534,11 Bn | 2015 | 548,87 Bn |
| 1984 | 326,97 Bn | 2000 | 543,39 Bn | 2016 | 555,97 Bn |
| 1985 | 348,17 Bn | 2001 | 539,44 Bn | 2017 | 565,12 Bn |
| 1986 | 365,44 Bn | 2002 | 532,39 Bn | 2018 | 569,15 Bn |
| 1987 | 381,8 Bn | 2003 | 530,21 Bn | 2019 | 571,84 Bn |
| 1988 | 409,72 Bn | 2004 | 534,63 Bn | 2020 | 554,07 Bn |
| 1989 | 438,8 Bn | 2005 | 537,39 Bn | 2021 | 573,57 Bn |
| 1990 | 471,83 Bn | 2006 | 540,57 Bn | 2022 | 584,9 Bn |
| 1991 | 502,65 Bn | 2007 | 544,57 Bn | 2023 | 616,03 Bn |
| 1992 | 515,68 Bn | 2008 | 533,36 Bn | 2024 | 634,23 Bn |
| 1993 | 516,02 Bn | 2009 | 499,36 Bn | 2025 | 663,76 Bn |
| 1994 | 521,68 Bn | 2010 | 510,14 Bn | 2026 | 677,6 Bn |
| 1995 | 530,46 Bn | 2011 | 501,14 Bn | | |
Tableau de données
| 1980 | 284,71 Bn | 1996 | 489,75 Bn | 2012 | 537,26 Bn |
| 1981 | 296,84 Bn | 1997 | 496,43 Bn | 2013 | 547,99 Bn |
| 1982 | 306,58 Bn | 1998 | 487,63 Bn | 2014 | 552,95 Bn |
| 1983 | 317,71 Bn | 1999 | 485,93 Bn | 2015 | 562,9 Bn |
| 1984 | 331,72 Bn | 2000 | 500,41 Bn | 2016 | 566,87 Bn |
| 1985 | 348,84 Bn | 2001 | 501,83 Bn | 2017 | 576,08 Bn |
| 1986 | 360,33 Bn | 2002 | 502,26 Bn | 2018 | 580,88 Bn |
| 1987 | 377,08 Bn | 2003 | 509,19 Bn | 2019 | 579,09 Bn |
| 1988 | 402,2 Bn | 2004 | 519,95 Bn | 2020 | 554,29 Bn |
| 1989 | 422,01 Bn | 2005 | 529,56 Bn | 2021 | 574,04 Bn |
| 1990 | 442,44 Bn | 2006 | 537,75 Bn | 2022 | 581,69 Bn |
| 1991 | 458,03 Bn | 2007 | 547,04 Bn | 2023 | 585,88 Bn |
| 1992 | 462,16 Bn | 2008 | 540,66 Bn | 2024 | 584,46 Bn |
| 1993 | 460,03 Bn | 2009 | 508,57 Bn | 2025 | 591,43 Bn |
| 1994 | 464,27 Bn | 2010 | 529,6 Bn | 2026 | 595,68 Bn |
| 1995 | 475,14 Bn | 2011 | 528,54 Bn | | |