데이터 표
| 1980 | -9.03억 | 1996 | -32.6억 | 2012 | -68.9억 |
| 1981 | -11.6억 | 1997 | -35.8억 | 2013 | -59.3억 |
| 1982 | -17.1억 | 1998 | -15.8억 | 2014 | -62.7억 |
| 1983 | -9.78억 | 1999 | -29.5억 | 2015 | -49.7억 |
| 1984 | -19.8억 | 2000 | -18.1억 | 2016 | -38.6억 |
| 1985 | -14.9억 | 2001 | -4.37억 | 2017 | -59.8억 |
| 1986 | -15.4억 | 2002 | -13.2억 | 2018 | -90.3억 |
| 1987 | -14.9억 | 2003 | -20.5억 | 2019 | -61.2억 |
| 1988 | -1.5억 | 2004 | -46.7억 | 2020 | -20.9억 |
| 1989 | -13.3억 | 2005 | -80.9억 | 2021 | -144억 |
| 1990 | -13.1억 | 2006 | -78.9억 | 2022 | -221억 |
| 1991 | -10.4억 | 2007 | -92.4억 | 2023 | -159억 |
| 1992 | -15.3억 | 2008 | -105억 | 2024 | -121억 |
| 1993 | -14.9억 | 2009 | -26.5억 | 2025 | -95.1억 |
| 1994 | -16.7억 | 2010 | -33.3억 | 2026 | -111억 |
| 1995 | -24.6억 | 2011 | -46.7억 | | |
데이터 표
| 1980 | -4% | 1996 | -4.7% | 2012 | -3.9% |
| 1981 | -4.9% | 1997 | -5.2% | 2013 | -3.2% |
| 1982 | -7.4% | 1998 | -2.8% | 2014 | -3.1% |
| 1983 | -4.4% | 1999 | -5% | 2015 | -2.8% |
| 1984 | -8.8% | 2000 | -3.3% | 2016 | -2.1% |
| 1985 | -6.6% | 2001 | -0.8% | 2017 | -2.9% |
| 1986 | -5.6% | 2002 | -2.1% | 2018 | -4.3% |
| 1987 | -4% | 2003 | -2.5% | 2019 | -2.9% |
| 1988 | -0.3% | 2004 | -4.6% | 2020 | -1% |
| 1989 | -3% | 2005 | -7.1% | 2021 | -5.8% |
| 1990 | -2.9% | 2006 | -7.2% | 2022 | -9% |
| 1991 | -2.4% | 2007 | -6.9% | 2023 | -6.3% |
| 1992 | -3.7% | 2008 | -7.7% | 2024 | -4.7% |
| 1993 | -3.3% | 2009 | -2.2% | 2025 | -3.7% |
| 1994 | -3.2% | 2010 | -2.3% | 2026 | -4% |
| 1995 | -4% | 2011 | -2.8% | | |