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| 1980 | -43 M | 1996 | -84 M | 2012 | -158 M |
| 1981 | -4 M | 1997 | -118 M | 2013 | -40 M |
| 1982 | -43 M | 1998 | -139 M | 2014 | -233 M |
| 1983 | -29 M | 1999 | -77 M | 2015 | -90 M |
| 1984 | -33 M | 2000 | -93 M | 2016 | -9 M |
| 1985 | -49 M | 2001 | -98 M | 2017 | -149 M |
| 1986 | -87 M | 2002 | -113 M | 2018 | -171 M |
| 1987 | -49 M | 2003 | -99 M | 2019 | -117 M |
| 1988 | -30 M | 2004 | -77 M | 2020 | -191 M |
| 1989 | -9 M | 2005 | -124 M | 2021 | -337 M |
| 1990 | -50 M | 2006 | 3 M | 2022 | -330 M |
| 1991 | -82 M | 2007 | -137 M | 2023 | -224 M |
| 1992 | -136 M | 2008 | -187 M | 2024 | -261 M |
| 1993 | -43 M | 2009 | -255 M | 2025 | -121 M |
| 1994 | -59 M | 2010 | -209 M | 2026 | -119 M |
| 1995 | -140 M | 2011 | -178 M | | |
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| 1980 | -6% | 1996 | -8,3% | 2012 | -6,3% |
| 1981 | -0,6% | 1997 | -12% | 2013 | -2,3% |
| 1982 | -5,9% | 1998 | -13,5% | 2014 | -11,4% |
| 1983 | -4,2% | 1999 | -7,4% | 2015 | -4,8% |
| 1984 | -5% | 2000 | -10,7% | 2016 | -0,5% |
| 1985 | -5,5% | 2001 | -10,9% | 2017 | -6,8% |
| 1986 | -7,5% | 2002 | -11,5% | 2018 | -7,2% |
| 1987 | -3,8% | 2003 | -8,3% | 2019 | -4,8% |
| 1988 | -2,2% | 2004 | -5,9% | 2020 | -7,6% |
| 1989 | -0,7% | 2005 | -8,8% | 2021 | -12,5% |
| 1990 | -3,1% | 2006 | 0,2% | 2022 | -12,9% |
| 1991 | -5,3% | 2007 | -7,8% | 2023 | -8,2% |
| 1992 | -8,9% | 2008 | -9,2% | 2024 | -9,1% |
| 1993 | -3,2% | 2009 | -12,3% | 2025 | -3,8% |
| 1994 | -6,7% | 2010 | -9,8% | 2026 | -3,4% |
| 1995 | -12,4% | 2011 | -7,3% | | |