Datentabelle
| 1970 | 68,7 Mio. | 1990 | 8,96 Mrd. | 2008 | 4,43 Mrd. |
| 1971 | 73,4 Mio. | 1991 | 12,9 Mrd. | 2009 | 4,21 Mrd. |
| 1972 | 90,7 Mio. | 1992 | 6,32 Mrd. | 2010 | 4,34 Mrd. |
| 1973 | 137 Mio. | 1993 | 2,98 Mrd. | 2011 | 5,39 Mrd. |
| 1974 | 385 Mio. | 1994 | 3,3 Mrd. | 2012 | 5,94 Mrd. |
| 1977 | 749 Mio. | 1995 | 3,69 Mrd. | 2013 | 5,7 Mrd. |
| 1978 | 738 Mio. | 1996 | 3,24 Mrd. | 2014 | 5,83 Mrd. |
| 1979 | 881 Mio. | 1997 | 2,45 Mrd. | 2015 | 5,74 Mrd. |
| 1980 | 951 Mio. | 1998 | 2,28 Mrd. | 2016 | 6,45 Mrd. |
| 1981 | 1,04 Mrd. | 1999 | 2,29 Mrd. | 2017 | 6,76 Mrd. |
| 1982 | 1,29 Mrd. | 2000 | 2,7 Mrd. | 2018 | 7,17 Mrd. |
| 1983 | 1,43 Mrd. | 2001 | 2,69 Mrd. | 2019 | 7,37 Mrd. |
| 1984 | 1,47 Mrd. | 2002 | 2,82 Mrd. | 2020 | 6,94 Mrd. |
| 1985 | 1,38 Mrd. | 2003 | 3,13 Mrd. | 2021 | 9,02 Mrd. |
| 1986 | 1,3 Mrd. | 2004 | 3,45 Mrd. | 2022 | 8,24 Mrd. |
| 1987 | 1,34 Mrd. | 2005 | 3,51 Mrd. | 2023 | 7,76 Mrd. |
| 1988 | 1,7 Mrd. | 2006 | 3,6 Mrd. | 2024 | 7,8 Mrd. |
| 1989 | 2,08 Mrd. | 2007 | 4,12 Mrd. | 2025 | 8,09 Mrd. |
Datentabelle
| 1970 | 2,4% | 1990 | 48,5% | 2008 | 3% |
| 1971 | 1,9% | 1991 | 117,3% | 2009 | 4% |
| 1972 | 2% | 1992 | 31,8% | 2010 | 3,8% |
| 1973 | 2,5% | 1993 | 12,4% | 2011 | 3,5% |
| 1974 | 3% | 1994 | 13,3% | 2012 | 3,4% |
| 1977 | 5,3% | 1995 | 13,6% | 2013 | 3,3% |
| 1978 | 4,8% | 1996 | 10,3% | 2014 | 3,6% |
| 1979 | 3,5% | 1997 | 8,1% | 2015 | 5% |
| 1980 | 3,3% | 1998 | 8,8% | 2016 | 5,9% |
| 1981 | 4,1% | 1999 | 7,6% | 2017 | 5,6% |
| 1982 | 6% | 2000 | 7,2% | 2018 | 5,2% |
| 1983 | 6,8% | 2001 | 7,7% | 2019 | 5,2% |
| 1984 | 6,8% | 2002 | 7,4% | 2020 | 6,3% |
| 1985 | 6,4% | 2003 | 6,5% | 2021 | 6,1% |
| 1986 | 7,2% | 2004 | 5,8% | 2022 | 4,5% |
| 1987 | 6% | 2005 | 4,3% | 2023 | 4,3% |
| 1988 | 8,2% | 2006 | 3,5% | 2024 | 4,4% |
| 1989 | 8,5% | 2007 | 3,6% | 2025 | 4,7% |