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| 1980 | -3 M | 1996 | -11 M | 2012 | -70 M |
| 1981 | 2 M | 1997 | -2 M | 2013 | -43 M |
| 1982 | 4 M | 1998 | -18 M | 2014 | -28 M |
| 1983 | 5 M | 1999 | -1 M | 2015 | -48 M |
| 1984 | 4 M | 2000 | -10 M | 2016 | -31 M |
| 1985 | 3 M | 2001 | -21 M | 2017 | -33 M |
| 1986 | -1 M | 2002 | -14 M | 2018 | -34 M |
| 1987 | 6 M | 2003 | -5 M | 2019 | -19 M |
| 1988 | -7 M | 2004 | -11 M | 2020 | -29 M |
| 1989 | -2 M | 2005 | -25 M | 2021 | -33 M |
| 1990 | -16 M | 2006 | -19 M | 2022 | -28 M |
| 1991 | -15 M | 2007 | -37 M | 2023 | -30 M |
| 1992 | -11 M | 2008 | -21 M | 2024 | -21 M |
| 1993 | -9 M | 2009 | -57 M | 2025 | -36 M |
| 1994 | -17 M | 2010 | -87 M | 2026 | -53 M |
| 1995 | -18 M | 2011 | -84 M | | |
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| 1980 | -4,6% | 1996 | -4,9% | 2012 | -16,4% |
| 1981 | 2,9% | 1997 | -0,7% | 2013 | -9,6% |
| 1982 | 4,7% | 1998 | -8,6% | 2014 | -6,3% |
| 1983 | 5,8% | 1999 | -0,5% | 2015 | -10,9% |
| 1984 | 5,4% | 2000 | -5% | 2016 | -7,5% |
| 1985 | 3,7% | 2001 | -11,7% | 2017 | -7,1% |
| 1986 | -1,4% | 2002 | -7,8% | 2018 | -7% |
| 1987 | 6% | 2003 | -2,6% | 2019 | -3,7% |
| 1988 | -5,9% | 2004 | -4,6% | 2020 | -5,6% |
| 1989 | -1,3% | 2005 | -9,5% | 2021 | -6,3% |
| 1990 | -11,4% | 2006 | -6,6% | 2022 | -5% |
| 1991 | -8,7% | 2007 | -12,5% | 2023 | -5,1% |
| 1992 | -5,9% | 2008 | -6,2% | 2024 | -3,3% |
| 1993 | -5% | 2009 | -18,1% | 2025 | -5,3% |
| 1994 | -9,2% | 2010 | -23,8% | 2026 | -7,4% |
| 1995 | -8,7% | 2011 | -20,2% | | |