Datentabelle
| 1991 | 27,5% | 2003 | 15,8% | 2015 | 30% |
| 1992 | 26,7% | 2004 | 17,5% | 2016 | 30,5% |
| 1993 | 20,4% | 2005 | 18,2% | 2017 | 31,7% |
| 1994 | 20,7% | 2006 | 18,6% | 2018 | 34,9% |
| 1995 | 22,9% | 2007 | 20,5% | 2019 | 37,6% |
| 1996 | 20,5% | 2008 | 25,1% | 2020 | 37% |
| 1997 | 19,6% | 2009 | 24,2% | 2021 | 40,6% |
| 1998 | 19,2% | 2010 | 23,2% | 2022 | 32,6% |
| 1999 | 21,1% | 2011 | 20,7% | 2023 | 38,2% |
| 2000 | 17,3% | 2012 | 20,6% | 2024 | 30,7% |
| 2001 | 17,2% | 2013 | 19,9% | 2025 | 31,6% |
| 2002 | 16,9% | 2014 | 21,8% | 2026 | 28,1% |
Datentabelle
| 1991 | 6,84 Mrd. | 2003 | 6,72 Mrd. | 2015 | 28 Mrd. |
| 1992 | 7 Mrd. | 2004 | 7,88 Mrd. | 2016 | 30,1 Mrd. |
| 1993 | 5,49 Mrd. | 2005 | 8,7 Mrd. | 2017 | 34,1 Mrd. |
| 1994 | 6,22 Mrd. | 2006 | 10 Mrd. | 2018 | 39,8 Mrd. |
| 1995 | 7,09 Mrd. | 2007 | 12 Mrd. | 2019 | 45,8 Mrd. |
| 1996 | 6,62 Mrd. | 2008 | 16,6 Mrd. | 2020 | 43,5 Mrd. |
| 1997 | 6,86 Mrd. | 2009 | 16,9 Mrd. | 2021 | 48,7 Mrd. |
| 1998 | 7,1 Mrd. | 2010 | 16,7 Mrd. | 2022 | 43,3 Mrd. |
| 1999 | 8,07 Mrd. | 2011 | 15,8 Mrd. | 2023 | 54 Mrd. |
| 2000 | 7,18 Mrd. | 2012 | 15,8 Mrd. | 2024 | 47,4 Mrd. |
| 2001 | 7,12 Mrd. | 2013 | 16,2 Mrd. | 2025 | 51,4 Mrd. |
| 2002 | 6,84 Mrd. | 2014 | 18,6 Mrd. | 2026 | 48,6 Mrd. |
Datentabelle
| 1991 | 30% | 2003 | 17% | 2015 | 38,1% |
| 1992 | 28,8% | 2004 | 16,7% | 2016 | 31,2% |
| 1993 | 23,7% | 2005 | 16,5% | 2017 | 32,7% |
| 1994 | 22% | 2006 | 18,2% | 2018 | 29,4% |
| 1995 | 25,3% | 2007 | 20,3% | 2019 | 35,1% |
| 1996 | 22,1% | 2008 | 25,1% | 2020 | 38,8% |
| 1997 | 20,1% | 2009 | 24,9% | 2021 | 38,6% |
| 1998 | 25,2% | 2010 | 25,6% | 2022 | 38,5% |
| 1999 | 21,6% | 2011 | 22,7% | 2023 | 38,9% |
| 2000 | 23% | 2012 | 22,1% | 2024 | 33,1% |
| 2001 | 20,2% | 2013 | 20,1% | 2025 | 35,5% |
| 2002 | 20,2% | 2014 | 20,5% | 2026 | 32,3% |
Datentabelle
| 1991 | 7,47 Mrd. | 2003 | 7,24 Mrd. | 2015 | 35,5 Mrd. |
| 1992 | 7,55 Mrd. | 2004 | 7,55 Mrd. | 2016 | 30,7 Mrd. |
| 1993 | 6,39 Mrd. | 2005 | 7,89 Mrd. | 2017 | 35,2 Mrd. |
| 1994 | 6,63 Mrd. | 2006 | 9,77 Mrd. | 2018 | 33,5 Mrd. |
| 1995 | 7,82 Mrd. | 2007 | 11,9 Mrd. | 2019 | 42,8 Mrd. |
| 1996 | 7,14 Mrd. | 2008 | 16,6 Mrd. | 2020 | 45,5 Mrd. |
| 1997 | 7,02 Mrd. | 2009 | 17,4 Mrd. | 2021 | 46,2 Mrd. |
| 1998 | 9,33 Mrd. | 2010 | 18,4 Mrd. | 2022 | 51,2 Mrd. |
| 1999 | 8,26 Mrd. | 2011 | 17,3 Mrd. | 2023 | 55,1 Mrd. |
| 2000 | 9,53 Mrd. | 2012 | 16,9 Mrd. | 2024 | 51,2 Mrd. |
| 2001 | 8,37 Mrd. | 2013 | 16,4 Mrd. | 2025 | 57,8 Mrd. |
| 2002 | 8,16 Mrd. | 2014 | 17,5 Mrd. | 2026 | 55,9 Mrd. |