Datentabelle
| 1981 | 33,2% | 1997 | 22,4% | 2013 | 30,9% |
| 1982 | 8,1% | 1998 | 22,3% | 2014 | 32% |
| 1983 | 11% | 1999 | 22,8% | 2015 | 31,2% |
| 1984 | 3,2% | 2000 | 22,9% | 2016 | 26,9% |
| 1985 | 10,7% | 2001 | 22,5% | 2017 | 25,1% |
| 1986 | 17,5% | 2002 | 21,8% | 2018 | 24,6% |
| 1987 | 15% | 2003 | 21,5% | 2019 | 24,1% |
| 1988 | 15,6% | 2004 | 24,1% | 2020 | 21% |
| 1989 | 16,9% | 2005 | 27,6% | 2021 | 21,6% |
| 1990 | 16,4% | 2006 | 30,6% | 2022 | 25% |
| 1991 | 17,9% | 2007 | 27,6% | 2023 | 24% |
| 1992 | 18,7% | 2008 | 34,2% | 2024 | 24,8% |
| 1993 | 18,9% | 2009 | 31,2% | 2025 | 20,6% |
| 1994 | 21,3% | 2010 | 28,9% | 2026 | 19,7% |
| 1995 | 21,4% | 2011 | 31,3% | | |
| 1996 | 21,6% | 2012 | 32,8% | | |
Datentabelle
| 1981 | 0 Mio. | 1997 | 10,4 Mrd. | 2013 | 76,3 Mrd. |
| 1982 | 0 Mio. | 1998 | 11,6 Mrd. | 2014 | 86,3 Mrd. |
| 1983 | 0 Mio. | 1999 | 12,3 Mrd. | 2015 | 85,7 Mrd. |
| 1984 | 1 Mio. | 2000 | 13,3 Mrd. | 2016 | 76,8 Mrd. |
| 1985 | 284 Mio. | 2001 | 13,5 Mrd. | 2017 | 79,8 Mrd. |
| 1986 | 1,49 Mrd. | 2002 | 13,9 Mrd. | 2018 | 82,2 Mrd. |
| 1987 | 1,49 Mrd. | 2003 | 14,9 Mrd. | 2019 | 81,7 Mrd. |
| 1988 | 1,89 Mrd. | 2004 | 18,7 Mrd. | 2020 | 61,3 Mrd. |
| 1989 | 2,4 Mrd. | 2005 | 23,8 Mrd. | 2021 | 71,3 Mrd. |
| 1990 | 2,84 Mrd. | 2006 | 31,5 Mrd. | 2022 | 88,1 Mrd. |
| 1991 | 3,82 Mrd. | 2007 | 32 Mrd. | 2023 | 86,9 Mrd. |
| 1992 | 4,59 Mrd. | 2008 | 46,9 Mrd. | 2024 | 94,1 Mrd. |
| 1993 | 5,16 Mrd. | 2009 | 43,6 Mrd. | 2025 | 90,7 Mrd. |
| 1994 | 6,57 Mrd. | 2010 | 45,7 Mrd. | 2026 | 109 Mrd. |
| 1995 | 7,73 Mrd. | 2011 | 60,2 Mrd. | | |
| 1996 | 9,06 Mrd. | 2012 | 70,7 Mrd. | | |
Datentabelle
| 1981 | 41,8% | 1997 | 25,3% | 2013 | 30,4% |
| 1982 | 22,4% | 1998 | 26,8% | 2014 | 34,9% |
| 1983 | 28,7% | 1999 | 26,3% | 2015 | 37% |
| 1984 | 26% | 2000 | 26,2% | 2016 | 32,9% |
| 1985 | 19,5% | 2001 | 28,6% | 2017 | 31,6% |
| 1986 | 19,9% | 2002 | 29,6% | 2018 | 31,4% |
| 1987 | 21,8% | 2003 | 28,6% | 2019 | 30,1% |
| 1988 | 21,5% | 2004 | 29% | 2020 | 31,9% |
| 1989 | 21,8% | 2005 | 29,5% | 2021 | 29,4% |
| 1990 | 20,4% | 2006 | 26,6% | 2022 | 31,2% |
| 1991 | 21,6% | 2007 | 28,9% | 2023 | 33,5% |
| 1992 | 22,6% | 2008 | 31,1% | 2024 | 33,5% |
| 1993 | 24,3% | 2009 | 28,9% | 2025 | 32,2% |
| 1994 | 24% | 2010 | 27,5% | 2026 | 29% |
| 1995 | 23,1% | 2011 | 30,6% | | |
| 1996 | 23,3% | 2012 | 31,3% | | |
Datentabelle
| 1981 | 0 Mio. | 1997 | 11,8 Mrd. | 2013 | 75,1 Mrd. |
| 1982 | 0 Mio. | 1998 | 14 Mrd. | 2014 | 94 Mrd. |
| 1983 | 0 Mio. | 1999 | 14,1 Mrd. | 2015 | 102 Mrd. |
| 1984 | 6 Mio. | 2000 | 15,2 Mrd. | 2016 | 93,8 Mrd. |
| 1985 | 515 Mio. | 2001 | 17,2 Mrd. | 2017 | 100 Mrd. |
| 1986 | 1,69 Mrd. | 2002 | 18,9 Mrd. | 2018 | 105 Mrd. |
| 1987 | 2,17 Mrd. | 2003 | 19,8 Mrd. | 2019 | 102 Mrd. |
| 1988 | 2,59 Mrd. | 2004 | 22,5 Mrd. | 2020 | 93,4 Mrd. |
| 1989 | 3,1 Mrd. | 2005 | 25,6 Mrd. | 2021 | 97,4 Mrd. |
| 1990 | 3,52 Mrd. | 2006 | 27,4 Mrd. | 2022 | 110 Mrd. |
| 1991 | 4,63 Mrd. | 2007 | 33,6 Mrd. | 2023 | 121 Mrd. |
| 1992 | 5,56 Mrd. | 2008 | 42,6 Mrd. | 2024 | 127 Mrd. |
| 1993 | 6,65 Mrd. | 2009 | 40,4 Mrd. | 2025 | 142 Mrd. |
| 1994 | 7,4 Mrd. | 2010 | 43,4 Mrd. | 2026 | 161 Mrd. |
| 1995 | 8,31 Mrd. | 2011 | 58,8 Mrd. | | |
| 1996 | 9,78 Mrd. | 2012 | 67,4 Mrd. | | |