Datentabelle
| 1997 | 64,2% | 2007 | 3,1% | 2017 | 24,7% |
| 1998 | 81,6% | 2008 | 3,6% | 2018 | 22,5% |
| 1999 | 66,7% | 2009 | 3,1% | 2019 | 17,7% |
| 2000 | 55,1% | 2010 | 7% | 2020 | 15,4% |
| 2001 | 34,1% | 2011 | 14,8% | 2021 | 12,3% |
| 2002 | 24,2% | 2012 | 17,9% | 2022 | 7,1% |
| 2003 | 16,9% | 2013 | 20,4% | 2023 | 5,5% |
| 2004 | 11,4% | 2014 | 16% | 2024 | 4,1% |
| 2005 | 6,8% | 2015 | 19% | 2025 | 3,8% |
| 2006 | 4,2% | 2016 | 21,1% | 2026 | 3,7% |
Datentabelle
| 1997 | 1,33 Mrd. | 2007 | 770 Mio. | 2017 | 32,8 Mrd. |
| 1998 | 2,13 Mrd. | 2008 | 1,64 Mrd. | 2018 | 32,1 Mrd. |
| 1999 | 2,49 Mrd. | 2009 | 1,66 Mrd. | 2019 | 27,9 Mrd. |
| 2000 | 2,68 Mrd. | 2010 | 4,28 Mrd. | 2020 | 24,4 Mrd. |
| 2001 | 2,29 Mrd. | 2011 | 11,7 Mrd. | 2021 | 21,3 Mrd. |
| 2002 | 2,04 Mrd. | 2012 | 18 Mrd. | 2022 | 14,2 Mrd. |
| 2003 | 1,87 Mrd. | 2013 | 22,7 Mrd. | 2023 | 12 Mrd. |
| 2004 | 1,57 Mrd. | 2014 | 19,8 Mrd. | 2024 | 9,88 Mrd. |
| 2005 | 1,13 Mrd. | 2015 | 23,7 Mrd. | 2025 | 10,2 Mrd. |
| 2006 | 876 Mio. | 2016 | 26,7 Mrd. | 2026 | 10,7 Mrd. |