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| 1980 | -26 M | 1996 | -58 M | 2012 | -160 M |
| 1981 | -34 M | 1997 | -79 M | 2013 | -108 M |
| 1982 | -22 M | 1998 | -60 M | 2014 | -42 M |
| 1983 | 1 M | 1999 | -111 M | 2015 | -9 M |
| 1984 | -8 M | 2000 | -166 M | 2016 | -118 M |
| 1985 | -2 M | 2001 | -168 M | 2017 | -38 M |
| 1986 | -6 M | 2002 | -159 M | 2018 | 30 M |
| 1987 | -13 M | 2003 | -207 M | 2019 | 70 M |
| 1988 | -18 M | 2004 | -159 M | 2020 | -284 M |
| 1989 | -66 M | 2005 | -176 M | 2021 | -194 M |
| 1990 | -59 M | 2006 | -372 M | 2022 | -77 M |
| 1991 | -73 M | 2007 | -246 M | 2023 | -52 M |
| 1992 | -56 M | 2008 | -348 M | 2024 | -40 M |
| 1993 | -50 M | 2009 | -119 M | 2025 | -122 M |
| 1994 | -48 M | 2010 | -188 M | 2026 | -127 M |
| 1995 | -36 M | 2011 | -224 M | | |
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| 1980 | -15,1% | 1996 | -7,3% | 2012 | -10% |
| 1981 | -17,3% | 1997 | -9,8% | 2013 | -6,5% |
| 1982 | -12,2% | 1998 | -6,9% | 2014 | -2,4% |
| 1983 | 0,3% | 1999 | -12% | 2015 | -0,5% |
| 1984 | -3,4% | 2000 | -17,8% | 2016 | -6,3% |
| 1985 | -0,7% | 2001 | -18,8% | 2017 | -1,9% |
| 1986 | -1,6% | 2002 | -17,6% | 2018 | 1,5% |
| 1987 | -3,5% | 2003 | -20,9% | 2019 | 3,3% |
| 1988 | -4,3% | 2004 | -14,9% | 2020 | -18,8% |
| 1989 | -13,5% | 2005 | -15,5% | 2021 | -10,4% |
| 1990 | -10,2% | 2006 | -29,4% | 2022 | -3,3% |
| 1991 | -12% | 2007 | -18,5% | 2023 | -2,2% |
| 1992 | -8,3% | 2008 | -24,4% | 2024 | -1,6% |
| 1993 | -7,3% | 2009 | -8,5% | 2025 | -4,6% |
| 1994 | -6,8% | 2010 | -12,7% | 2026 | -4,6% |
| 1995 | -4,8% | 2011 | -14,3% | | |