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| 1980 | -83 M | 1996 | -40 M | 2012 | -461 M |
| 1981 | -67 M | 1997 | 6 M | 2013 | -506 M |
| 1982 | -127 M | 1998 | -44 M | 2014 | -429 M |
| 1983 | -133 M | 1999 | -39 M | 2015 | -358 M |
| 1984 | -118 M | 2000 | -61 M | 2016 | -327 M |
| 1985 | -41 M | 2001 | -31 M | 2017 | -373 M |
| 1986 | -36 M | 2002 | -104 M | 2018 | -389 M |
| 1987 | -95 M | 2003 | -110 M | 2019 | -348 M |
| 1988 | -70 M | 2004 | -60 M | 2020 | -345 M |
| 1989 | -11 M | 2005 | -52 M | 2021 | -424 M |
| 1990 | -69 M | 2006 | -271 M | 2022 | -659 M |
| 1991 | -33 M | 2007 | -440 M | 2023 | -634 M |
| 1992 | -60 M | 2008 | -158 M | 2024 | -415 M |
| 1993 | -28 M | 2009 | -112 M | 2025 | -425 M |
| 1994 | -17 M | 2010 | -249 M | 2026 | -447 M |
| 1995 | 10 M | 2011 | -324 M | | |
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| 1980 | -7,5% | 1996 | -4% | 2012 | -19,7% |
| 1981 | -5,8% | 1997 | 0,5% | 2013 | -20,6% |
| 1982 | -10,5% | 1998 | -4,2% | 2014 | -15,8% |
| 1983 | -10,3% | 1999 | -3,9% | 2015 | -11,5% |
| 1984 | -10,1% | 2000 | -6,2% | 2016 | -11,1% |
| 1985 | -3% | 2001 | -3,1% | 2017 | -11,8% |
| 1986 | -2,5% | 2002 | -11,4% | 2018 | -12,8% |
| 1987 | -7% | 2003 | -13,1% | 2019 | -11,6% |
| 1988 | -5,5% | 2004 | -6,3% | 2020 | -11,2% |
| 1989 | -0,9% | 2005 | -4,7% | 2021 | -12,6% |
| 1990 | -5,3% | 2006 | -21,3% | 2022 | -16,8% |
| 1991 | -2,5% | 2007 | -32,4% | 2023 | -14,8% |
| 1992 | -4,7% | 2008 | -9,8% | 2024 | -8,6% |
| 1993 | -2,6% | 2009 | -6,3% | 2025 | -6,1% |
| 1994 | -1,6% | 2010 | -12,2% | 2026 | -5,5% |
| 1995 | 0,9% | 2011 | -14,5% | | |