Tableau de données
| 1997 | 14,4% | 2007 | 14,5% | 2017 | 14,8% |
| 1998 | 13,9% | 2008 | 14,4% | 2018 | 14,7% |
| 1999 | 12,4% | 2009 | 13,4% | 2019 | 15% |
| 2000 | 12% | 2010 | 13,1% | 2020 | 15% |
| 2001 | 12,1% | 2011 | 10,3% | 2021 | 15,6% |
| 2002 | 12,5% | 2012 | 13,9% | 2022 | 15,1% |
| 2003 | 11,4% | 2013 | 14,2% | 2023 | 15,9% |
| 2004 | 12,5% | 2014 | 13,6% | 2024 | 16,4% |
| 2005 | 12,6% | 2015 | 14,5% | 2025 | 17,2% |
| 2006 | 13,4% | 2016 | 14,6% | 2026 | 17,6% |
Tableau de données
| 1997 | 1,36 Bn | 2007 | 1,95 Bn | 2017 | 4,52 Bn |
| 1998 | 1,43 Bn | 2008 | 2,16 Bn | 2018 | 4,76 Bn |
| 1999 | 1,31 Bn | 2009 | 2,12 Bn | 2019 | 5,3 Bn |
| 2000 | 1,27 Bn | 2010 | 2,24 Bn | 2020 | 5,42 Bn |
| 2001 | 1,38 Bn | 2011 | 1,73 Bn | 2021 | 6,29 Bn |
| 2002 | 1,48 Bn | 2012 | 2,62 Bn | 2022 | 6,68 Bn |
| 2003 | 1,4 Bn | 2013 | 3,04 Bn | 2023 | 7,77 Bn |
| 2004 | 1,51 Bn | 2014 | 3,29 Bn | 2024 | 8,66 Bn |
| 2005 | 1,57 Bn | 2015 | 3,92 Bn | 2025 | 9,87 Bn |
| 2006 | 1,73 Bn | 2016 | 4,19 Bn | 2026 | 10,96 Bn |
Tableau de données
| 1997 | 15,2% | 2007 | 14,8% | 2017 | 18,1% |
| 1998 | 14,6% | 2008 | 14,6% | 2018 | 17,6% |
| 1999 | 13,7% | 2009 | 14,4% | 2019 | 17,2% |
| 2000 | 12,9% | 2010 | 14,5% | 2020 | 20,4% |
| 2001 | 11,4% | 2011 | 13,2% | 2021 | 20,5% |
| 2002 | 13,1% | 2012 | 16,1% | 2022 | 21,9% |
| 2003 | 12,7% | 2013 | 15,9% | 2023 | 21% |
| 2004 | 13,5% | 2014 | 15,2% | 2024 | 20,4% |
| 2005 | 13,6% | 2015 | 16,5% | 2025 | 20,2% |
| 2006 | 14,5% | 2016 | 17,6% | 2026 | 20,6% |
Tableau de données
| 1997 | 1,43 Bn | 2007 | 2 Bn | 2017 | 5,52 Bn |
| 1998 | 1,5 Bn | 2008 | 2,19 Bn | 2018 | 5,71 Bn |
| 1999 | 1,44 Bn | 2009 | 2,28 Bn | 2019 | 6,08 Bn |
| 2000 | 1,36 Bn | 2010 | 2,46 Bn | 2020 | 7,39 Bn |
| 2001 | 1,3 Bn | 2011 | 2,21 Bn | 2021 | 8,26 Bn |
| 2002 | 1,56 Bn | 2012 | 3,05 Bn | 2022 | 9,67 Bn |
| 2003 | 1,56 Bn | 2013 | 3,39 Bn | 2023 | 10,28 Bn |
| 2004 | 1,63 Bn | 2014 | 3,67 Bn | 2024 | 10,76 Bn |
| 2005 | 1,69 Bn | 2015 | 4,47 Bn | 2025 | 11,59 Bn |
| 2006 | 1,86 Bn | 2016 | 5,04 Bn | 2026 | 12,86 Bn |