Tableau de données
| 1988 | 17,9% | 2001 | 17,2% | 2014 | 19,3% |
| 1989 | 18% | 2002 | 18% | 2015 | 20,1% |
| 1990 | 17,7% | 2003 | 18,5% | 2016 | 20,4% |
| 1991 | 19,4% | 2004 | 19,2% | 2017 | 20,3% |
| 1992 | 18,8% | 2005 | 19,4% | 2018 | 20,3% |
| 1993 | 17,6% | 2006 | 20,5% | 2019 | 19,6% |
| 1994 | 18,2% | 2007 | 22,4% | 2020 | 18,6% |
| 1995 | 18,2% | 2008 | 20,1% | 2021 | 21% |
| 1996 | 17,7% | 2009 | 18,8% | 2022 | 20,7% |
| 1997 | 17% | 2010 | 19,2% | 2023 | 21,3% |
| 1998 | 16,3% | 2011 | 19,3% | 2024 | 21,4% |
| 1999 | 17,1% | 2012 | 19,9% | 2025 | 21% |
| 2000 | 17,7% | 2013 | 19,7% | 2026 | 21,2% |
Tableau de données
| 1988 | 768 Md | 2001 | 3,99 Bn | 2014 | 23,88 Bn |
| 1989 | 888 Md | 2002 | 4,5 Bn | 2015 | 27,34 Bn |
| 1990 | 1,02 Bn | 2003 | 5,17 Bn | 2016 | 30,96 Bn |
| 1991 | 1,28 Bn | 2004 | 6,13 Bn | 2017 | 34,19 Bn |
| 1992 | 1,43 Bn | 2005 | 7,04 Bn | 2018 | 37,71 Bn |
| 1993 | 1,54 Bn | 2006 | 8,73 Bn | 2019 | 38,5 Bn |
| 1994 | 1,87 Bn | 2007 | 10,95 Bn | 2020 | 36,04 Bn |
| 1995 | 2,19 Bn | 2008 | 11,1 Bn | 2021 | 48,23 Bn |
| 1996 | 2,46 Bn | 2009 | 12 Bn | 2022 | 54,14 Bn |
| 1997 | 2,62 Bn | 2010 | 14,65 Bn | 2023 | 61,82 Bn |
| 1998 | 2,89 Bn | 2011 | 16,85 Bn | 2024 | 68,14 Bn |
| 1999 | 3,41 Bn | 2012 | 19,7 Bn | 2025 | 72,85 Bn |
| 2000 | 3,78 Bn | 2013 | 22,02 Bn | 2026 | 81,63 Bn |
Tableau de données
| 1988 | 24,5% | 2001 | 28,3% | 2014 | 26,2% |
| 1989 | 25,2% | 2002 | 29,1% | 2015 | 27,3% |
| 1990 | 25,4% | 2003 | 29,9% | 2016 | 27,6% |
| 1991 | 26,8% | 2004 | 28,5% | 2017 | 26,6% |
| 1992 | 26,7% | 2005 | 26% | 2018 | 26,8% |
| 1993 | 26,2% | 2006 | 25,6% | 2019 | 27,4% |
| 1994 | 26,2% | 2007 | 26,1% | 2020 | 31,8% |
| 1995 | 25% | 2008 | 28,3% | 2021 | 30,7% |
| 1996 | 24,4% | 2009 | 28,1% | 2022 | 30% |
| 1997 | 25,2% | 2010 | 27,7% | 2023 | 29,7% |
| 1998 | 26% | 2011 | 27,3% | 2024 | 29,3% |
| 1999 | 25,9% | 2012 | 27,2% | 2025 | 28,5% |
| 2000 | 26,1% | 2013 | 26,5% | 2026 | 28,6% |
Tableau de données
| 1988 | 1,05 Bn | 2001 | 6,55 Bn | 2014 | 32,41 Bn |
| 1989 | 1,25 Bn | 2002 | 7,26 Bn | 2015 | 37,27 Bn |
| 1990 | 1,46 Bn | 2003 | 8,36 Bn | 2016 | 41,92 Bn |
| 1991 | 1,78 Bn | 2004 | 9,06 Bn | 2017 | 44,83 Bn |
| 1992 | 2,03 Bn | 2005 | 9,45 Bn | 2018 | 49,69 Bn |
| 1993 | 2,29 Bn | 2006 | 10,91 Bn | 2019 | 53,97 Bn |
| 1994 | 2,69 Bn | 2007 | 12,78 Bn | 2020 | 61,59 Bn |
| 1995 | 3,01 Bn | 2008 | 15,59 Bn | 2021 | 70,52 Bn |
| 1996 | 3,4 Bn | 2009 | 17,89 Bn | 2022 | 78,26 Bn |
| 1997 | 3,9 Bn | 2010 | 21,16 Bn | 2023 | 86,09 Bn |
| 1998 | 4,61 Bn | 2011 | 23,87 Bn | 2024 | 93,13 Bn |
| 1999 | 5,14 Bn | 2012 | 26,96 Bn | 2025 | 98,63 Bn |
| 2000 | 5,58 Bn | 2013 | 29,6 Bn | 2026 | 110,13 Bn |