Datentabelle
| 1983 | 20% | 1998 | 19,9% | 2013 | 20,7% |
| 1984 | 23,1% | 1999 | 19,5% | 2014 | 20,8% |
| 1985 | 22,9% | 2000 | 20,8% | 2015 | 18,3% |
| 1986 | 23,1% | 2001 | 20,2% | 2016 | 16,1% |
| 1987 | 23,9% | 2002 | 19,1% | 2017 | 15,9% |
| 1988 | 19,5% | 2003 | 18,9% | 2018 | 17,7% |
| 1989 | 22,7% | 2004 | 21,5% | 2019 | 16,3% |
| 1990 | 22,5% | 2005 | 23,5% | 2020 | 14,7% |
| 1991 | 21,8% | 2006 | 24,8% | 2021 | 15,1% |
| 1992 | 18,5% | 2007 | 24,9% | 2022 | 16,6% |
| 1993 | 18,6% | 2008 | 22,5% | 2023 | 17,9% |
| 1994 | 18,3% | 2009 | 19,2% | 2024 | 17,5% |
| 1995 | 18,2% | 2010 | 21,5% | 2025 | 17,3% |
| 1996 | 19,6% | 2011 | 21,9% | 2026 | 18,2% |
| 1997 | 21,2% | 2012 | 21,2% | | |
Datentabelle
| 1983 | 632 Mio. | 1998 | 2,29 Mrd. | 2013 | 9,9 Mrd. |
| 1984 | 723 Mio. | 1999 | 2,54 Mrd. | 2014 | 11,9 Mrd. |
| 1985 | 743 Mio. | 2000 | 2,99 Mrd. | 2015 | 11 Mrd. |
| 1986 | 792 Mio. | 2001 | 3,11 Mrd. | 2016 | 10,5 Mrd. |
| 1987 | 843 Mio. | 2002 | 3,26 Mrd. | 2017 | 11,5 Mrd. |
| 1988 | 911 Mio. | 2003 | 3,69 Mrd. | 2018 | 14,1 Mrd. |
| 1989 | 1,02 Mrd. | 2004 | 4,34 Mrd. | 2019 | 13,7 Mrd. |
| 1990 | 1,02 Mrd. | 2005 | 5,34 Mrd. | 2020 | 12,1 Mrd. |
| 1991 | 1,16 Mrd. | 2006 | 6,33 Mrd. | 2021 | 13,9 Mrd. |
| 1992 | 1,15 Mrd. | 2007 | 7,05 Mrd. | 2022 | 18,5 Mrd. |
| 1993 | 1,34 Mrd. | 2008 | 7,09 Mrd. | 2023 | 19,8 Mrd. |
| 1994 | 1,49 Mrd. | 2009 | 6,14 Mrd. | 2024 | 20,8 Mrd. |
| 1995 | 1,66 Mrd. | 2010 | 8,32 Mrd. | 2025 | 23,2 Mrd. |
| 1996 | 1,97 Mrd. | 2011 | 9,34 Mrd. | 2026 | 27 Mrd. |
| 1997 | 2,22 Mrd. | 2012 | 9,42 Mrd. | | |
Datentabelle
| 1983 | 23% | 1998 | 20% | 2013 | 27,6% |
| 1984 | 24,2% | 1999 | 21,4% | 2014 | 27,1% |
| 1985 | 24,7% | 2000 | 20,5% | 2015 | 22,8% |
| 1986 | 25,5% | 2001 | 21,6% | 2016 | 20,9% |
| 1987 | 23,6% | 2002 | 20,8% | 2017 | 18,4% |
| 1988 | 19,1% | 2003 | 18,7% | 2018 | 20,3% |
| 1989 | 22,3% | 2004 | 19,4% | 2019 | 21,3% |
| 1990 | 24,5% | 2005 | 20,6% | 2020 | 23,5% |
| 1991 | 22,4% | 2006 | 19,4% | 2021 | 22% |
| 1992 | 22,8% | 2007 | 18% | 2022 | 21,9% |
| 1993 | 23,5% | 2008 | 19,8% | 2023 | 22,3% |
| 1994 | 19,3% | 2009 | 24,7% | 2024 | 20,9% |
| 1995 | 17,1% | 2010 | 18,4% | 2025 | 19,7% |
| 1996 | 17,6% | 2011 | 19,7% | 2026 | 19,3% |
| 1997 | 20,6% | 2012 | 22,4% | | |
Datentabelle
| 1983 | 728 Mio. | 1998 | 2,31 Mrd. | 2013 | 13,2 Mrd. |
| 1984 | 758 Mio. | 1999 | 2,8 Mrd. | 2014 | 15,5 Mrd. |
| 1985 | 803 Mio. | 2000 | 2,94 Mrd. | 2015 | 13,7 Mrd. |
| 1986 | 876 Mio. | 2001 | 3,31 Mrd. | 2016 | 13,6 Mrd. |
| 1987 | 832 Mio. | 2002 | 3,56 Mrd. | 2017 | 13,3 Mrd. |
| 1988 | 896 Mio. | 2003 | 3,65 Mrd. | 2018 | 16,1 Mrd. |
| 1989 | 1,01 Mrd. | 2004 | 3,93 Mrd. | 2019 | 17,9 Mrd. |
| 1990 | 1,12 Mrd. | 2005 | 4,69 Mrd. | 2020 | 19,4 Mrd. |
| 1991 | 1,19 Mrd. | 2006 | 4,97 Mrd. | 2021 | 20,1 Mrd. |
| 1992 | 1,42 Mrd. | 2007 | 5,1 Mrd. | 2022 | 24,4 Mrd. |
| 1993 | 1,69 Mrd. | 2008 | 6,23 Mrd. | 2023 | 24,6 Mrd. |
| 1994 | 1,58 Mrd. | 2009 | 7,89 Mrd. | 2024 | 24,8 Mrd. |
| 1995 | 1,56 Mrd. | 2010 | 7,13 Mrd. | 2025 | 26,4 Mrd. |
| 1996 | 1,76 Mrd. | 2011 | 8,4 Mrd. | 2026 | 28,6 Mrd. |
| 1997 | 2,15 Mrd. | 2012 | 9,95 Mrd. | | |