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| 1980 | -6 M | 1996 | -35 M | 2012 | 26 M |
| 1981 | -21 M | 1997 | -21 M | 2013 | -27 M |
| 1982 | -4 M | 1998 | -6 M | 2014 | -50 M |
| 1983 | -6 M | 1999 | 14 M | 2015 | -35 M |
| 1984 | 0 M | 2000 | -31 M | 2016 | -51 M |
| 1985 | -29 M | 2001 | -26 M | 2017 | -63 M |
| 1986 | 8 M | 2002 | -15 M | 2018 | -48 M |
| 1987 | 0 M | 2003 | 21 M | 2019 | -154 M |
| 1988 | -21 M | 2004 | 61 M | 2020 | -25 M |
| 1989 | -26 M | 2005 | -29 M | 2021 | -77 M |
| 1990 | -26 M | 2006 | -42 M | 2022 | -215 M |
| 1991 | -36 M | 2007 | -80 M | 2023 | -172 M |
| 1992 | -7 M | 2008 | -77 M | 2024 | -66 M |
| 1993 | -7 M | 2009 | -59 M | 2025 | -17 M |
| 1994 | 1 M | 2010 | -144 M | 2026 | -84 M |
| 1995 | -85 M | 2011 | -20 M | | |
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| 1980 | -2,6% | 1996 | -5,7% | 2012 | 2,2% |
| 1981 | -9,2% | 1997 | -3,3% | 2013 | -2,1% |
| 1982 | -1,8% | 1998 | -1% | 2014 | -3,7% |
| 1983 | -3% | 1999 | 2,4% | 2015 | -2,7% |
| 1984 | 0,2% | 2000 | -6,1% | 2016 | -3,7% |
| 1985 | -14,5% | 2001 | -5,3% | 2017 | -4,3% |
| 1986 | 4,8% | 2002 | -3,6% | 2018 | -3% |
| 1987 | 0,1% | 2003 | 5% | 2019 | -9,5% |
| 1988 | -10,1% | 2004 | 13,1% | 2020 | -1,6% |
| 1989 | -12,8% | 2005 | -5,2% | 2021 | -5% |
| 1990 | -10,3% | 2006 | -6,8% | 2022 | -14,6% |
| 1991 | -13,5% | 2007 | -11,5% | 2023 | -11,4% |
| 1992 | -2,3% | 2008 | -9,9% | 2024 | -4,2% |
| 1993 | -2,1% | 2009 | -7,4% | 2025 | -1% |
| 1994 | 0,3% | 2010 | -16% | 2026 | -4,6% |
| 1995 | -15,3% | 2011 | -1,9% | | |