Datentabelle
| 1978 | 343 Mio. | 1994 | 595 Mio. | 2010 | 3,5 Mrd. |
| 1979 | 505 Mio. | 1995 | 234 Mio. | 2011 | 3,64 Mrd. |
| 1980 | 497 Mio. | 1996 | 160 Mio. | 2012 | 4,14 Mrd. |
| 1981 | 619 Mio. | 1997 | 457 Mio. | 2013 | 6,09 Mrd. |
| 1982 | 668 Mio. | 1998 | 170 Mio. | 2014 | 6,85 Mrd. |
| 1983 | 779 Mio. | 1999 | 1,07 Mrd. | 2015 | 3,61 Mrd. |
| 1984 | 1,07 Mrd. | 2000 | 584 Mio. | 2016 | 2,76 Mrd. |
| 1985 | 1,15 Mrd. | 2001 | 404 Mio. | 2017 | 3,06 Mrd. |
| 1986 | 1,16 Mrd. | 2002 | 439 Mio. | 2018 | 1,98 Mrd. |
| 1987 | 1,49 Mrd. | 2003 | 670 Mio. | 2019 | 1,47 Mrd. |
| 1988 | 1,47 Mrd. | 2004 | 818 Mio. | 2020 | 992 Mio. |
| 1989 | 1,95 Mrd. | 2005 | 1,37 Mrd. | 2021 | 974 Mio. |
| 1990 | 1,75 Mrd. | 2006 | 1,97 Mrd. | 2022 | 1,62 Mrd. |
| 1991 | 1,03 Mrd. | 2007 | 2,03 Mrd. | 2023 | 1,25 Mrd. |
| 1992 | 794 Mio. | 2008 | 3,16 Mrd. | 2024 | 924 Mio. |
| 1993 | 1,77 Mrd. | 2009 | 3,31 Mrd. | 2025 | 1,46 Mrd. |
Datentabelle
| 1985 | 0% | 1999 | 17,3% | 2013 | 4,5% |
| 1986 | 0% | 2000 | 6,4% | 2014 | 4,7% |
| 1987 | 22,3% | 2001 | 4,5% | 2015 | 3,1% |
| 1988 | 22% | 2002 | 2,9% | 2016 | 2,7% |
| 1989 | 19,4% | 2003 | 3,8% | 2017 | 2,5% |
| 1990 | 17,5% | 2004 | 3,5% | 2018 | 2% |
| 1991 | 7,1% | 2005 | 3,7% | 2019 | 1,8% |
| 1992 | 5,7% | 2006 | 3,8% | 2020 | 1,8% |
| 1993 | 17,5% | 2007 | 3,1% | 2021 | 1,4% |
| 1994 | 5,7% | 2008 | 3,6% | 2022 | 1,4% |
| 1995 | 4,7% | 2009 | 4,7% | 2023 | 1,4% |
| 1996 | 2,4% | 2010 | 4,2% | 2024 | 1% |
| 1997 | 6% | 2011 | 3,3% | 2025 | 1,4% |
| 1998 | 2,6% | 2012 | 3,2% | | |